How to set default timezone in my app please ?

[ningji]

Hi i did a quick search but cannot find the answer yet, in moment you can do
moment.tz.setDefault("America/New_York");
this sets the default timezeone.

What's the equivalent in date-fns please ?

[25747]

There is not an equivalent with date-fns. You can achieve the same outcomes by making your own wrappers around date-fns-tz functions, but it is not like using moment.

[ningji]

Thx very much for the info !

[ningji]

Have a followup question, say i set the TZ to be New York timezone in the .env, and node.js app imports dotenv package to use New York time zone.
Now my docker container is using UK timezone as system time.

I know date-fns.format() generates output string in local timezone format, so in my case will it format into UK time or NY time ? @25747

[ningji]

ok i did quick test, seems it's using the timezone from my .env.

However, my unit test using jest still picks up in my local time in PC, not from .env :(