$ zdump -Vc 2025,2026 America/New_York
America/New_York Sun Mar 9 06:59:59 2025 UT = Sun Mar 9 01:59:59 2025 EST isdst=0 gmtoff=-18000
America/New_York Sun Mar 9 07:00:00 2025 UT = Sun Mar 9 03:00:00 2025 EDT isdst=1 gmtoff=-14400
America/New_York Sun Nov 2 05:59:59 2025 UT = Sun Nov 2 01:59:59 2025 EDT isdst=1 gmtoff=-14400
America/New_York Sun Nov 2 06:00:00 2025 UT = Sun Nov 2 01:00:00 2025 EST isdst=0 gmtoff=-18000
$ zdump -Vc 2025,2026 Europe/London
Europe/London Sun Mar 30 00:59:59 2025 UT = Sun Mar 30 00:59:59 2025 GMT isdst=0 gmtoff=0
Europe/London Sun Mar 30 01:00:00 2025 UT = Sun Mar 30 02:00:00 2025 BST isdst=1 gmtoff=3600
Europe/London Sun Oct 26 00:59:59 2025 UT = Sun Oct 26 01:59:59 2025 BST isdst=1 gmtoff=3600
Europe/London Sun Oct 26 01:00:00 2025 UT = Sun Oct 26 01:00:00 2025 GMT isdst=0 gmtoff=0
I have a piece of paper on my desk, each side has the time zone, utc offset, and date when DST will change. Twice a year I flip over the paper.
Right now it reads "EDT, UTC-4, until: Sun, Nov 2"
Going to add a clock next to it now, that's a great idea
And then with distributed team you realize DST change dates are different around the globe.
Desks around the globe can have different pieces of paper.
Analog clock is a great idea. I just use the Windows multiple timezone clocks feature, but I can see the usefulness of being able to glance at UTC.
I did this back when I used Windows. I suppose I'll have to add multiple clock widgets to my XFCE panels to get the same effect.
Expense a Rolex GMT Master or Sky Dweller. Tell your boss I said it was necessary!
Perhaps a shell alias for:
TZ="Etc/UTC" xclock -analog -update 1 -norender -hl grey -fg grey -bg black
(or similar) would also suffice.
I do the same! I am in PDT and keep a UTC and EDT clock (most of my team is east coast)
I really love this idea!
One of the great things about living at 0 latitude is it's UTC half the year
Did you mean longitude?
Yes, thanks. Having a baby will play havoc with your brain.