belt + dateparser

belt is a command line app that can show your time from a list of selected time zones. dateparser is a rust library for parsing date strings in commonly used formats.

Run belt to parse a given date:

$ belt 'MAY 12, 2021 16:44 UTC'
+-------------------+---------------------------+
| Zone              | Date & Time               |
+===================+===========================+
| Local             | 2021-05-12 09:44:00 -0700 |
|                   | 1620837840                |
+-------------------+---------------------------+
| UTC               | 2021-05-12 16:44:00 +0000 |
|                   | 2021-05-12 16:44 UTC      |
+-------------------+---------------------------+
| America/Vancouver | 2021-05-12 09:44:00 -0700 |
|                   | 2021-05-12 09:44 PDT      |
+-------------------+---------------------------+
| America/New_York  | 2021-05-12 12:44:00 -0400 |
|                   | 2021-05-12 12:44 EDT      |
+-------------------+---------------------------+
| Europe/London     | 2021-05-12 17:44:00 +0100 |
|                   | 2021-05-12 17:44 BST      |
+-------------------+---------------------------+

Display parsed date in the short form:

# parse a unix epoch timestamp
$ belt 1511648546 --short
2017-11-25 14:22:26 -0800

# or show the current local datetime
$ belt --short
2021-05-15 22:54:34 -0700

Time zones are configurable:

$ belt config --help
belt-config
Configure time zones list

USAGE:
    belt config [FLAGS] [OPTIONS]

FLAGS:
    -h, --help       Prints help information
    -l, --list       List existing time zones
    -r, --reset      Reset to default list of time zones
    -V, --version    Prints version information

OPTIONS:
    -a, --add <timezone_to_add>          Add a new time zone to the list
    -d, --delete <timezone_to_delete>    Delete a time zone from the list

Installation

MacOS Homebrew or Linuxbrew:

brew tap waltzofpearls/belt
brew install belt

dateparser

Date parsing in belt is powered by dateparser crate, which is a part of this repo.

Accepted date formats

Date string in the following formats can be parsed by belt:

// unix timestamp
"1511648546",
"1620021848429",
"1620024872717915000",
// rfc3339
"2021-05-01T01:17:02.604456Z",
"2017-11-25T22:34:50Z",
// rfc2822
"Wed, 02 Jun 2021 06:31:39 GMT",
// postgres timestamp yyyy-mm-dd hh:mm:ss z
"2019-11-29 08:08-08",
"2019-11-29 08:08:05-08",
"2021-05-02 23:31:36.0741-07",
"2021-05-02 23:31:39.12689-07",
"2019-11-29 08:15:47.624504-08",
"2017-07-19 03:21:51+00:00",
// yyyy-mm-dd hh:mm:ss
"2014-04-26 05:24:37 PM",
"2021-04-30 21:14",
"2021-04-30 21:14:10",
"2021-04-30 21:14:10.052282",
"2014-04-26 17:24:37.123",
"2014-04-26 17:24:37.3186369",
"2012-08-03 18:31:59.257000000",
// yyyy-mm-dd hh:mm:ss z
"2017-11-25 13:31:15 PST",
"2017-11-25 13:31 PST",
"2014-12-16 06:20:00 UTC",
"2014-12-16 06:20:00 GMT",
"2014-04-26 13:13:43 +0800",
"2014-04-26 13:13:44 +09:00",
"2012-08-03 18:31:59.257000000 +0000",
"2015-09-30 18:48:56.35272715 UTC",
// yyyy-mm-dd
"2021-02-21",
// yyyy-mm-dd z
"2021-02-21 PST",
"2021-02-21 UTC",
"2020-07-20+08:00",
// hh:mm:ss
"01:06:06",
"4:00pm",
"6:00 AM",
// hh:mm:ss z
"01:06:06 PST",
"4:00pm PST",
"6:00 AM PST",
"6:00pm UTC",
// Mon dd hh:mm:ss
"May 6 at 9:24 PM",
"May 27 02:45:27",
// Mon dd, yyyy, hh:mm:ss
"May 8, 2009 5:57:51 PM",
"September 17, 2012 10:09am",
"September 17, 2012, 10:10:09",
// Mon dd, yyyy hh:mm:ss z
"May 02, 2021 15:51:31 UTC",
"May 02, 2021 15:51 UTC",
"May 26, 2021, 12:49 AM PDT",
"September 17, 2012 at 10:09am PST",
// yyyy-mon-dd
"2021-Feb-21",
// Mon dd, yyyy
"May 25, 2021",
"oct 7, 1970",
"oct 7, 70",
"oct. 7, 1970",
"oct. 7, 70",
"October 7, 1970",
// dd Mon yyyy hh:mm:ss
"12 Feb 2006, 19:17",
"12 Feb 2006 19:17",
"14 May 2019 19:11:40.164",
// dd Mon yyyy
"7 oct 70",
"7 oct 1970",
"03 February 2013",
"1 July 2013",
// mm/dd/yyyy hh:mm:ss
"4/8/2014 22:05",
"04/08/2014 22:05",
"4/8/14 22:05",
"04/2/2014 03:00:51",
"8/8/1965 12:00:00 AM",
"8/8/1965 01:00:01 PM",
"8/8/1965 01:00 PM",
"8/8/1965 1:00 PM",
"8/8/1965 12:00 AM",
"4/02/2014 03:00:51",
"03/19/2012 10:11:59",
"03/19/2012 10:11:59.3186369",
// mm/dd/yyyy
"3/31/2014",
"03/31/2014",
"08/21/71",
"8/1/71",
// yyyy/mm/dd hh:mm:ss
"2014/4/8 22:05",
"2014/04/08 22:05",
"2014/04/2 03:00:51",
"2014/4/02 03:00:51",
"2012/03/19 10:11:59",
"2012/03/19 10:11:59.3186369",
// yyyy/mm/dd
"2014/3/31",
"2014/03/31",
// mm.dd.yyyy
"3.31.2014",
"03.31.2014",
"08.21.71",
// yyyy.mm.dd
"2014.03.30",
"2014.03",
// yymmdd hh:mm:ss mysql log
"171113 14:14:20",
// chinese yyyy mm dd hh mm ss
"2014年04月08日11时25分18秒",
// chinese yyyy mm dd
"2014年04月08日",