A command line tool to get a sorted list of UTC offsets, abbreviations, descriptions and times from a list of timezone abbreviations.
Run ./install.sh like this:
ksandom@delli:/usr/files/develop/timezone2offset$ ./install.sh
Installing locally using symlinks to the repo dir.
'./o2t' -> '/usr/files/develop/timezone2offset/bin/o2t'
'./tz2o' -> '/usr/files/develop/timezone2offset/bin/tz2o'
'./tz2t' -> '/usr/files/develop/timezone2offset/bin/tz2t'
Run ./uninstall.sh like this:
ksandom@delli:/usr/files/develop/timezone2offset$ ./uninstall.sh
Removing locally.
removed '/home/ksandom/bin/o2t'
removed '/home/ksandom/bin/tz2o'
removed '/home/ksandom/bin/tz2t'
Run ./install.sh like this:
ksandom@delli:/usr/files/develop/timezone2offset$ sudo ./install.sh
Installing system-wide.
'o2t' -> '/usr/bin/o2t'
'tz2o' -> '/usr/bin/tz2o'
'tz2t' -> '/usr/bin/tz2t'
Run ./uninstall.sh like this:
ksandom@delli:/usr/files/develop/timezone2offset$ sudo ./uninstall.sh
Removing system-wide.
removed '/usr/bin/o2t'
removed '/usr/bin/tz2o'
removed '/usr/bin/tz2t'
You can give it a single parameter:
ksandom@delli:~$ tz2o CST
Offset Abbreviation Description
UTC−06 CST Central Standard Time (Central America)
UTC−05 CST Cuba Standard Time
UTC+08 CST Time in China|China Standard Time
Get that same information with an approximate time:
ksandom@delli:~$ date
Fri 5 Apr 01:03:07 CEST 2024
ksandom@delli:~$ tz2t CST
Offset Abbreviation Description Approx time
UTC-06 CST Central Standard Time (Central America) 17:03 yesterday
UTC-05 CST Cuba Standard Time 18:03 yesterday
UTC+08 CST Time in China|China Standard Time 07:03
I say "approximate" because minutes are not yet taken into account. So some timezones will be a little off. That current looks like this (with a *):
UTC+12 TVT Tuvalu Time 11:07
UTC+12 WAKT Wake Island Time 11:07
UTC+13:45 CHADT Chatham Daylight Time 12:07*
UTC+13 NZDT New Zealand Daylight Time 12:07
UTC+13 PHOT Phoenix Island Time 12:07
You can pipe a whole load of timezones at once:
ksandom@delli:~$ echo " GMT
UTC
ECT
EET
ART
EAT
MET
NET
PLT
IST
BST
VST
CTT
JST
ACT
AET
SST
NST
MIT
HST
AST
PST
PNT
MST
CST
EST
IET
PRT
CNT
AGT
BET
CAT " | tz2o
Offset Abbreviation Description
UTC−11 SST Samoa Standard Time
UTC−10 HST Hawaii–Aleutian Standard Time
UTC−09:30 MIT Marquesas Islands Time
UTC−08 PST Pacific Standard Time (North America)
UTC−07 MST Mountain Standard Time (North America)
UTC−06 CST Central Standard Time (Central America)
UTC−05 EST Eastern Standard Time (North America)
UTC−05 ECT Ecuador Time
UTC−05 CST Cuba Standard Time
UTC−05 ACT Acre Time
UTC−04 ECT Eastern Caribbean Time (does not recognise DST)
UTC−04 AST Atlantic Standard Time
UTC−03 ART Argentina Time
UTC−03:30 NST Newfoundland Standard Time
UTC+01 BST British Standard Time from Mar 1968 to Oct 1971)
UTC+01 IST Irish Standard Time
UTC+01 MET Middle European Time (''same zone as CET'')
UTC+02 CAT Central Africa Time
UTC+02 EET Eastern European Time
UTC+02 IST Israel Standard Time
UTC+03 AST Arabia Standard Time
UTC+03 EAT East Africa Time
UTC+05:30 IST Indian Standard Time
UTC+06 BST Bangladesh Standard Time
UTC+08:00 ACT ASEAN Common Time (proposed)
UTC+08 CST Time in China|China Standard Time
UTC+08 MST Malaysia Standard Time
UTC+08 SST Singapore Standard Time
UTC+09 JST Japan Standard Time
UTC+11 AET Australian Eastern Time
UTC+11 BST Bougainville Standard Time
You can also do that like this:
ksandom@delli:~$ tz2t nzdt nzst
Offset Abbreviation Description Approx time
UTC+12 NZST New Zealand Standard Time 11:44
UTC+13 NZDT New Zealand Daylight Time 12:44
You can pipe the output to another program, and it will send it in CSV format:
ksandom@delli:~$ tz2o BST | cat -
Offset,Abbreviation,Description
UTC+06,BST,Bangladesh Standard Time
UTC+11,BST,Bougainville Standard Time
UTC+01,BST,British Standard Time from Mar 1968 to Oct 1971)
Any case is understood:
ksandom@delli:~$ tz2o nzdt
Offset Abbreviation Description
UTC+13 NZDT New Zealand Daylight Time
ksandom@delli:~$ tz2o NzDt
Offset Abbreviation Description
UTC+13 NZDT New Zealand Daylight Time
ksandom@delli:~$ tz2o NZDT
Offset Abbreviation Description
UTC+13 NZDT New Zealand Daylight Time
If you want to run the output through another program, but want to have the user formatting, you can do so like this:
ksandom@delli:~$ echo "BST" | tz2o
Offset Abbreviation Description
UTC+01 BST British Standard Time from Mar 1968 to Oct 1971)
UTC+06 BST Bangladesh Standard Time
UTC+11 BST Bougainville Standard Time
ksandom@delli:~$ echo "BST" | tz2o | grep -v Brit
Offset,Abbreviation,Description
UTC+06,BST,Bangladesh Standard Time
UTC+11,BST,Bougainville Standard Time
ksandom@delli:~$ echo "BST" | tz2o | grep -v Brit | tz2o reformat
Offset Abbreviation Description
UTC+06 BST Bangladesh Standard Time
UTC+11 BST Bougainville Standard Time
You can list everything:
ksandom@delli:~$ tz2o all
Offset Abbreviation Description
UTC−12 IDLW UTC-12|International Date Line West time zone
UTC−12 BIT Baker Island Time
UTC−11 SST Samoa Standard Time
UTC−11 NUT Niue Time
UTC−10 TAHT Tahiti Time
UTC−10 SDT Samoa Daylight Time
UTC−10 HST Hawaii–Aleutian Standard Time
UTC−10 CKT Cook Island Time
UTC−09 HDT Hawaii–Aleutian Daylight Time
<...snipped for conciseness>
You can search by offsets as well:
ksandom@delli:~$ tz2t -1
Offset Abbreviation Description Approx time
UTC-01 EGT Eastern Greenland Time 22:27 yesterday
UTC-01 CVT Cape Verde Time 22:27 yesterday
UTC-01 AZOT Time in Portugal|Azores Standard Time 22:27 yesterday
You can quickly grab your own currently active timezone:
ksandom@delli:~$ tz2t me
Offset Abbreviation Description Approx time
UTC+02 CEST Central European Summer Time 01:50
Or all the timezones that have the same offset as yours:
ksandom@delli:~$ tz2t same
Offset Abbreviation Description Approx time
UTC+02 CAT Central Africa Time 01:50
UTC+02 CEST Central European Summer Time 01:50
UTC+02 EET Eastern European Time 01:50
UTC+02 HAEC Heure Avancée d'Europe Centrale French-language name for CEST 01:50
UTC+02 IST Israel Standard Time 01:50
UTC+02 KALT Kaliningrad Time 01:50
UTC+02 MEST Middle European Summer Time (''same zone as CEST'') 01:50
UTC+02 SAST South African Standard Time 01:50
UTC+02 WAST West Africa Summer Time 01:50
Instead of showing the current time in the chosen timezone, you can specify a time:
ksandom@delli:~$ tz2o nzdt | o2t 12:34
Offset Abbreviation Description Approx time
UTC+13 NZDT New Zealand Daylight Time 23:34