utc: convert times to UTC
utc converts times to UTC. If no arguments are provided, prints the
current time in UTC. If the only time provided is "-", reads
newline-separated timestamps from standard input.
Flags:
-f format Go timezone format. See the Go documentation
(e.g. https://golang.org/pkg/time/#pkg-constants)
for an explanation of this format.
-z zone Text form of the time zone; this can be in short
time zone abbreviation (e.g. MST) or a location
(e.g. America/Los_Angeles). This has no effect
when printing the current time.
Examples (note that the examples are done in the America/Los_Angeles /
PST8PDT time zone):
+ Getting the current time in UTC:
$ utc
2016-06-14 14:30 = 2016-06-14 21:30
+ Converting a local timestamp to UTC:
$ utc '2016-06-14 21:30'
2016-06-14 21:30 = 2016-06-15 04:30
+ Converting a local EST timestamp to UTC (on a machine set to
PST8PDT):
$ utc -z EST '2016-06-14 21:30'
2016-06-14 21:30 = 2016-06-15 02:30
+ Converting timestamps in the form '14-06-2016 3:04PM':
$ utc -f '02-01-2006 3:04PM' '14-06-2016 9:30PM'
14-06-2016 9:30PM = 15-06-2016 4:30AM
+ Converting timestamps from standard input:
$ printf "2016-06-14 14:42\n2016-06-13 11:01" | utc -
2016-06-14 14:42 = 2016-06-14 21:42
2016-06-13 11:01 = 2016-06-13 18:01
+ Converting a UTC timestamp to the local time zone:
$ utc -u '2016-06-14 21:30'
2016-06-14 21:30 = 2016-06-14 14:30
+ Converting a UTC timestamp to EST (on a machine set to
PST8PDT):
$ utc -u -z EST '2016-06-14 21:30'
2016-06-14 21:30 = 2016-06-14 16:30
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