Summertime

[eeglob]

I am puzzled by the following tests of future dates:

new timezoneJS.Date("2017-03-26T01:00:00+0400", "Europe/Moscow") .toISOString() returns "2017-03-25T21:00:00.000Z"

• Must be correct.

new timezoneJS.Date("2017-03-26T02:00:00+0400", "Europe/Moscow") .toISOString() returns "2017-03-26T00:00:00.000Z"

• 1 hour more in Moscow turns to 3 hours difference in +0000?

NB: Russia no longer follows summer time. I assume 000Z to mean +0000 / no zone or summer time adjustment.

Am I missing something? Who can help?

[longlho]

Have you checked the IANA timezone rule for Russia itself? That's our data source

[eeglob]

It think it is updated, there is a note in it concerning dst abolishment.

Look at this: new timezoneJS.Date("2014-03-30T03:00:00+0400", "Europe/Moscow").toISOString() new timezoneJS.Date("2014-03-30T05:00:00+0400", "Europe/Moscow").toISOString() both return "2014-03-30T00:00:00.000Z"

[longlho]

So just wanna make sure I got the use case right:

new timezoneJS.Date("2014-03-30T03:00:00+0400", "Europe/Moscow").toISOString() should yield 2014-03-29T23:00:00.000Z?

[eeglob]

I would expect exactly that. Can anyone collaborate?

[eeglob]

new timezoneJS.Date("2014-03-30T03:00:00+0400", "Europe/Moscow").toISOString() should yield 2014-03-29T23:00:00.000Z, but does not..