π A time zone helper
tz helps you schedule things across time zones. It's an interactive TUI program that displays time across the time zones of your choosing.
Usage
Run tz with no arguments to show the local time, as well as the UTC
time zone. It gets more useful when you pass some time zones to the
program, to list those below the local time zone.
For now, you need to select the time zones from the tz_data list. Yes, there are plans to make this friendlier for humans too. You're welcome to file an issue about it. I enjoy reading those.
If you would rather not type the list everytime, you could set an alias
for your shell, or use the TZ_LIST environment variable with a
semi-colon separated list of tz data zone names (see
Configuration below). Command-line arguments trump the environment
variable.
Check out tz -h for other flags.
The program will adjust to light and dark terminals themes.
Installing
I provide linux/amd64 builds for "official" releases, and you can build from source for your favorite architecture. Kind souls have also packaged the program for other OSes.
Packages
Brew
Brew has a tz package: brew install tz
Archlinux
If you're an Archlinux user, packages are also available:
Go
go install github.com/oz/tz@latest
Configuration
The tz program uses standard time zones as described
here.
You should specify what time zones to display by setting the TZ_LIST
environment variable. The local time is always displayed first. To
display your local time, the time in California, and the time Paris, you
have to set TZ_LIST to US/Pacific;Europe/Paris
Zone Alias
The TZ_LIST env. variable recognizes items from the standard tz
database names, but you can alias these, using a special value: use the
standard name followed by , and your alias. For example:
TZ_LIST="Europe/Paris,EMEA office;US/Central,US office"
Building
You need a recent-ish release of go with modules support:
git clone https://github.com/oz/tz
cd tz
go build
Testing
go test -cover
Contributing
Please do file bugs, and feature requests. I am accepting patches too,
those are the best, but please, open an issue first to discuss your
changes.
License
The GPL3 license.
Copyright (c) 2021-2022 Arnaud Berthomier