utcToZonedTime not accepting the offset

[psmod2]

Hi,

I'm unable to use an offset in the utcToZonedTime().

It works fine with a IANA string like America/Lima - just when I do:

const localTimezoneOffset = new Date().getTimezoneOffset();
const localDate = utcToZonedTime(myUtcDateTime, localTimezoneOffset.toString());

return format(localDate, ("yyyy-mm-dd HH:mm:ss"))

[herrernst]

I think I have the same use case. I know the offset value of the timezone (in ms, fwiw), but don't have a time zone name. So i just would want to pass that offset as number to utcToZonedTime.

[aerolith07]

I was having a similar issue and had a look at the documentation.
For a specific hour/mins offset, you need to provide an offset value in the form of [+-]HH or [+-]HHMM, like this:

// PLUS 4 hour offset
const localDate = datefns.utcToZonedTime(new Date(), '+04');

// MINUS 2 hour 30 mins offset
const localDate = datefns.utcToZonedTime(new Date(), '-0230');

@psmod2 If you're using getTimezoneOffset(), it will return an offset in minutes, so you'd need to divide by 60 to get number of hours needed, and then convert to a string which is in the format similar to the example above