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* github.com/araddon/dateparse upgrade => v0.0.0-20200409225146-d820a6159ab1 * code.gitea.io/sdk/gitea upgrade => v0.11.3 * github.com/olekukonko/tablewriter upgrade => v0.0.4 * github.com/mattn/go-runewidth upgrade => v0.0.9 * github.com/stretchr/testify upgrade => v1.5.1 * github.com/davecgh/go-spew upgrade => v1.1.1 * github.com/urfave/cli/v2 upgrade => v2.2.0 Co-authored-by: 6543 <6543@obermui.de> Reviewed-on: https://gitea.com/gitea/tea/pulls/129 Reviewed-by: techknowlogick <techknowlogick@gitea.io> Reviewed-by: Lunny Xiao <xiaolunwen@gmail.com>
283 lines
14 KiB
Markdown
283 lines
14 KiB
Markdown
Go Date Parser
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---------------------------
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Parse many date strings without knowing format in advance. Uses a scanner to read bytes and use a state machine to find format. Much faster than shotgun based parse methods. See [bench_test.go](https://github.com/araddon/dateparse/blob/master/bench_test.go) for performance comparison.
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[![Code Coverage](https://codecov.io/gh/araddon/dateparse/branch/master/graph/badge.svg)](https://codecov.io/gh/araddon/dateparse)
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[![GoDoc](https://godoc.org/github.com/araddon/dateparse?status.svg)](http://godoc.org/github.com/araddon/dateparse)
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[![Build Status](https://travis-ci.org/araddon/dateparse.svg?branch=master)](https://travis-ci.org/araddon/dateparse)
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[![Go ReportCard](https://goreportcard.com/badge/araddon/dateparse)](https://goreportcard.com/report/araddon/dateparse)
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**MM/DD/YYYY VS DD/MM/YYYY** Right now this uses mm/dd/yyyy WHEN ambiguous if this is not desired behavior, use `ParseStrict` which will fail on ambiguous date strings.
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**Timezones** The location your server is configured affects the results! See example or https://play.golang.org/p/IDHRalIyXh and last paragraph here https://golang.org/pkg/time/#Parse.
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```go
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// Normal parse. Equivalent Timezone rules as time.Parse()
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t, err := dateparse.ParseAny("3/1/2014")
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// Parse Strict, error on ambigous mm/dd vs dd/mm dates
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t, err := dateparse.ParseStrict("3/1/2014")
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> returns error
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// Return a string that represents the layout to parse the given date-time.
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layout, err := dateparse.ParseFormat("May 8, 2009 5:57:51 PM")
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> "Jan 2, 2006 3:04:05 PM"
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```
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cli tool for testing dateformats
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----------------------------------
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[Date Parse CLI](https://github.com/araddon/dateparse/blob/master/dateparse)
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Extended example
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-------------------
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https://github.com/araddon/dateparse/blob/master/example/main.go
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```go
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package main
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import (
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"flag"
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"fmt"
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"time"
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"github.com/scylladb/termtables"
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"github.com/araddon/dateparse"
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)
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var examples = []string{
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"May 8, 2009 5:57:51 PM",
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"oct 7, 1970",
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"oct 7, '70",
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"oct. 7, 1970",
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"oct. 7, 70",
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"Mon Jan 2 15:04:05 2006",
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"Mon Jan 2 15:04:05 MST 2006",
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"Mon Jan 02 15:04:05 -0700 2006",
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"Monday, 02-Jan-06 15:04:05 MST",
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"Mon, 02 Jan 2006 15:04:05 MST",
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"Tue, 11 Jul 2017 16:28:13 +0200 (CEST)",
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"Mon, 02 Jan 2006 15:04:05 -0700",
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"Thu, 4 Jan 2018 17:53:36 +0000",
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"Mon Aug 10 15:44:11 UTC+0100 2015",
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"Fri Jul 03 2015 18:04:07 GMT+0100 (GMT Daylight Time)",
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"September 17, 2012 10:09am",
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"September 17, 2012 at 10:09am PST-08",
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"September 17, 2012, 10:10:09",
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"October 7, 1970",
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"October 7th, 1970",
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"12 Feb 2006, 19:17",
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"12 Feb 2006 19:17",
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"7 oct 70",
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"7 oct 1970",
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"03 February 2013",
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"1 July 2013",
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"2013-Feb-03",
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// mm/dd/yy
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"3/31/2014",
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"03/31/2014",
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"08/21/71",
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"8/1/71",
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"4/8/2014 22:05",
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"04/08/2014 22:05",
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"4/8/14 22:05",
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"04/2/2014 03:00:51",
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"8/8/1965 12:00:00 AM",
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"8/8/1965 01:00:01 PM",
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"8/8/1965 01:00 PM",
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"8/8/1965 1:00 PM",
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"8/8/1965 12:00 AM",
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"4/02/2014 03:00:51",
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"03/19/2012 10:11:59",
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"03/19/2012 10:11:59.3186369",
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// yyyy/mm/dd
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"2014/3/31",
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"2014/03/31",
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"2014/4/8 22:05",
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"2014/04/08 22:05",
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"2014/04/2 03:00:51",
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"2014/4/02 03:00:51",
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"2012/03/19 10:11:59",
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"2012/03/19 10:11:59.3186369",
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// Chinese
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"2014年04月08日",
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// yyyy-mm-ddThh
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"2006-01-02T15:04:05+0000",
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"2009-08-12T22:15:09-07:00",
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"2009-08-12T22:15:09",
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"2009-08-12T22:15:09Z",
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// yyyy-mm-dd hh:mm:ss
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"2014-04-26 17:24:37.3186369",
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"2012-08-03 18:31:59.257000000",
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"2014-04-26 17:24:37.123",
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"2013-04-01 22:43",
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"2013-04-01 22:43:22",
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"2014-12-16 06:20:00 UTC",
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"2014-12-16 06:20:00 GMT",
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"2014-04-26 05:24:37 PM",
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"2014-04-26 13:13:43 +0800",
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"2014-04-26 13:13:43 +0800 +08",
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"2014-04-26 13:13:44 +09:00",
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"2012-08-03 18:31:59.257000000 +0000 UTC",
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"2015-09-30 18:48:56.35272715 +0000 UTC",
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"2015-02-18 00:12:00 +0000 GMT",
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"2015-02-18 00:12:00 +0000 UTC",
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"2015-02-08 03:02:00 +0300 MSK m=+0.000000001",
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"2015-02-08 03:02:00.001 +0300 MSK m=+0.000000001",
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"2017-07-19 03:21:51+00:00",
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"2014-04-26",
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"2014-04",
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"2014",
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"2014-05-11 08:20:13,787",
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// mm.dd.yy
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"3.31.2014",
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"03.31.2014",
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"08.21.71",
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"2014.03",
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"2014.03.30",
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// yyyymmdd and similar
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"20140601",
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"20140722105203",
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// unix seconds, ms, micro, nano
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"1332151919",
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"1384216367189",
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"1384216367111222",
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"1384216367111222333",
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}
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var (
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timezone = ""
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)
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func main() {
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flag.StringVar(&timezone, "timezone", "UTC", "Timezone aka `America/Los_Angeles` formatted time-zone")
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flag.Parse()
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if timezone != "" {
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// NOTE: This is very, very important to understand
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// time-parsing in go
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loc, err := time.LoadLocation(timezone)
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if err != nil {
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panic(err.Error())
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}
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time.Local = loc
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}
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table := termtables.CreateTable()
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table.AddHeaders("Input", "Parsed, and Output as %v")
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for _, dateExample := range examples {
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t, err := dateparse.ParseLocal(dateExample)
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if err != nil {
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panic(err.Error())
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}
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table.AddRow(dateExample, fmt.Sprintf("%v", t))
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}
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fmt.Println(table.Render())
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}
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/*
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+-------------------------------------------------------+-----------------------------------------+
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| Input | Parsed, and Output as %v |
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+-------------------------------------------------------+-----------------------------------------+
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| May 8, 2009 5:57:51 PM | 2009-05-08 17:57:51 +0000 UTC |
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| oct 7, 1970 | 1970-10-07 00:00:00 +0000 UTC |
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| oct 7, '70 | 1970-10-07 00:00:00 +0000 UTC |
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| oct. 7, 1970 | 1970-10-07 00:00:00 +0000 UTC |
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| oct. 7, 70 | 1970-10-07 00:00:00 +0000 UTC |
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| Mon Jan 2 15:04:05 2006 | 2006-01-02 15:04:05 +0000 UTC |
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| Mon Jan 2 15:04:05 MST 2006 | 2006-01-02 15:04:05 +0000 MST |
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| Mon Jan 02 15:04:05 -0700 2006 | 2006-01-02 15:04:05 -0700 -0700 |
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| Monday, 02-Jan-06 15:04:05 MST | 2006-01-02 15:04:05 +0000 MST |
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| Mon, 02 Jan 2006 15:04:05 MST | 2006-01-02 15:04:05 +0000 MST |
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| Tue, 11 Jul 2017 16:28:13 +0200 (CEST) | 2017-07-11 16:28:13 +0200 +0200 |
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| Mon, 02 Jan 2006 15:04:05 -0700 | 2006-01-02 15:04:05 -0700 -0700 |
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| Thu, 4 Jan 2018 17:53:36 +0000 | 2018-01-04 17:53:36 +0000 UTC |
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| Mon Aug 10 15:44:11 UTC+0100 2015 | 2015-08-10 15:44:11 +0000 UTC |
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| Fri Jul 03 2015 18:04:07 GMT+0100 (GMT Daylight Time) | 2015-07-03 18:04:07 +0100 GMT |
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| September 17, 2012 10:09am | 2012-09-17 10:09:00 +0000 UTC |
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| September 17, 2012 at 10:09am PST-08 | 2012-09-17 10:09:00 -0800 PST |
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| September 17, 2012, 10:10:09 | 2012-09-17 10:10:09 +0000 UTC |
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| October 7, 1970 | 1970-10-07 00:00:00 +0000 UTC |
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| October 7th, 1970 | 1970-10-07 00:00:00 +0000 UTC |
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| 12 Feb 2006, 19:17 | 2006-02-12 19:17:00 +0000 UTC |
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| 12 Feb 2006 19:17 | 2006-02-12 19:17:00 +0000 UTC |
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| 7 oct 70 | 1970-10-07 00:00:00 +0000 UTC |
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| 7 oct 1970 | 1970-10-07 00:00:00 +0000 UTC |
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| 03 February 2013 | 2013-02-03 00:00:00 +0000 UTC |
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| 1 July 2013 | 2013-07-01 00:00:00 +0000 UTC |
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| 2013-Feb-03 | 2013-02-03 00:00:00 +0000 UTC |
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| 3/31/2014 | 2014-03-31 00:00:00 +0000 UTC |
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| 03/31/2014 | 2014-03-31 00:00:00 +0000 UTC |
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| 08/21/71 | 1971-08-21 00:00:00 +0000 UTC |
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| 8/1/71 | 1971-08-01 00:00:00 +0000 UTC |
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| 4/8/2014 22:05 | 2014-04-08 22:05:00 +0000 UTC |
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| 04/08/2014 22:05 | 2014-04-08 22:05:00 +0000 UTC |
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| 4/8/14 22:05 | 2014-04-08 22:05:00 +0000 UTC |
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| 04/2/2014 03:00:51 | 2014-04-02 03:00:51 +0000 UTC |
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| 8/8/1965 12:00:00 AM | 1965-08-08 00:00:00 +0000 UTC |
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| 8/8/1965 01:00:01 PM | 1965-08-08 13:00:01 +0000 UTC |
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| 8/8/1965 01:00 PM | 1965-08-08 13:00:00 +0000 UTC |
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| 8/8/1965 1:00 PM | 1965-08-08 13:00:00 +0000 UTC |
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| 8/8/1965 12:00 AM | 1965-08-08 00:00:00 +0000 UTC |
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| 4/02/2014 03:00:51 | 2014-04-02 03:00:51 +0000 UTC |
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| 03/19/2012 10:11:59 | 2012-03-19 10:11:59 +0000 UTC |
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| 03/19/2012 10:11:59.3186369 | 2012-03-19 10:11:59.3186369 +0000 UTC |
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| 2014/3/31 | 2014-03-31 00:00:00 +0000 UTC |
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| 2014/03/31 | 2014-03-31 00:00:00 +0000 UTC |
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| 2014/4/8 22:05 | 2014-04-08 22:05:00 +0000 UTC |
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| 2014/04/08 22:05 | 2014-04-08 22:05:00 +0000 UTC |
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| 2014/04/2 03:00:51 | 2014-04-02 03:00:51 +0000 UTC |
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| 2014/4/02 03:00:51 | 2014-04-02 03:00:51 +0000 UTC |
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| 2012/03/19 10:11:59 | 2012-03-19 10:11:59 +0000 UTC |
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| 2012/03/19 10:11:59.3186369 | 2012-03-19 10:11:59.3186369 +0000 UTC |
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| 2014年04月08日 | 2014-04-08 00:00:00 +0000 UTC |
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| 2006-01-02T15:04:05+0000 | 2006-01-02 15:04:05 +0000 UTC |
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| 2009-08-12T22:15:09-07:00 | 2009-08-12 22:15:09 -0700 -0700 |
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| 2009-08-12T22:15:09 | 2009-08-12 22:15:09 +0000 UTC |
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| 2009-08-12T22:15:09Z | 2009-08-12 22:15:09 +0000 UTC |
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| 2014-04-26 17:24:37.3186369 | 2014-04-26 17:24:37.3186369 +0000 UTC |
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| 2012-08-03 18:31:59.257000000 | 2012-08-03 18:31:59.257 +0000 UTC |
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| 2014-04-26 17:24:37.123 | 2014-04-26 17:24:37.123 +0000 UTC |
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| 2013-04-01 22:43 | 2013-04-01 22:43:00 +0000 UTC |
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| 2013-04-01 22:43:22 | 2013-04-01 22:43:22 +0000 UTC |
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| 2014-12-16 06:20:00 UTC | 2014-12-16 06:20:00 +0000 UTC |
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| 2014-12-16 06:20:00 GMT | 2014-12-16 06:20:00 +0000 UTC |
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| 2014-04-26 05:24:37 PM | 2014-04-26 17:24:37 +0000 UTC |
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| 2014-04-26 13:13:43 +0800 | 2014-04-26 13:13:43 +0800 +0800 |
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| 2014-04-26 13:13:43 +0800 +08 | 2014-04-26 13:13:43 +0800 +0800 |
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| 2014-04-26 13:13:44 +09:00 | 2014-04-26 13:13:44 +0900 +0900 |
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| 2012-08-03 18:31:59.257000000 +0000 UTC | 2012-08-03 18:31:59.257 +0000 UTC |
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| 2015-09-30 18:48:56.35272715 +0000 UTC | 2015-09-30 18:48:56.35272715 +0000 UTC |
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| 2015-02-18 00:12:00 +0000 GMT | 2015-02-18 00:12:00 +0000 UTC |
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| 2015-02-18 00:12:00 +0000 UTC | 2015-02-18 00:12:00 +0000 UTC |
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| 2015-02-08 03:02:00 +0300 MSK m=+0.000000001 | 2015-02-08 03:02:00 +0300 +0300 |
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| 2015-02-08 03:02:00.001 +0300 MSK m=+0.000000001 | 2015-02-08 03:02:00.001 +0300 +0300 |
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| 2017-07-19 03:21:51+00:00 | 2017-07-19 03:21:51 +0000 UTC |
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| 2014-04-26 | 2014-04-26 00:00:00 +0000 UTC |
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| 2014-04 | 2014-04-01 00:00:00 +0000 UTC |
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| 2014 | 2014-01-01 00:00:00 +0000 UTC |
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| 2014-05-11 08:20:13,787 | 2014-05-11 08:20:13.787 +0000 UTC |
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| 3.31.2014 | 2014-03-31 00:00:00 +0000 UTC |
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| 03.31.2014 | 2014-03-31 00:00:00 +0000 UTC |
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| 08.21.71 | 1971-08-21 00:00:00 +0000 UTC |
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| 2014.03 | 2014-03-01 00:00:00 +0000 UTC |
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| 2014.03.30 | 2014-03-30 00:00:00 +0000 UTC |
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| 20140601 | 2014-06-01 00:00:00 +0000 UTC |
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| 20140722105203 | 2014-07-22 10:52:03 +0000 UTC |
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| 1332151919 | 2012-03-19 10:11:59 +0000 UTC |
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| 1384216367189 | 2013-11-12 00:32:47.189 +0000 UTC |
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| 1384216367111222 | 2013-11-12 00:32:47.111222 +0000 UTC |
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| 1384216367111222333 | 2013-11-12 00:32:47.111222333 +0000 UTC |
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+-------------------------------------------------------+-----------------------------------------+
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*/
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```
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