FW: Daylight Saving Time (DST) change -- second half of 2025

TTWG Members,

We have no scheduled calls in the period between when the EU+UK and US+Canada revert off Daylight Savings Time.

I will adjust the UTC times of all our teleconference calls after November 2 so that in places that are in DST now, and will be moving off DST, the calls are at the same local time as they have been during the northern hemisphere summer.

Please let me know if that will cause you any difficulties.

Nigel



On 15/10/2025, 16:53, "Xueyuan Jia" <xueyuan@w3.org <mailto:xueyuan@w3.org>> wrote:


External: Think before clicking


Dear Chairs,


This is a friendly reminder about the upcoming Daylight Saving Time
(DST) changes:


https://www.timeanddate.com/time/dst/events.html <https://www.timeanddate.com/time/dst/events.html>


Most European clocks will move back 1 hr on Sunday, 26 October 2025.
Most of the US/Canada clocks will move back 1 hr a week later, on
Sunday, 2 November 2025.


Between October 26 and November 2, the time difference between Canada/US
and Europe will be 1 hour less than it currently is. This means that
during that week, teleconferences scheduled according to the US/Canada
clock will start *one hour earlier* in local time for most Europeans.


China, Japan, and Russia do not observe DST, which means the time
difference between these areas and Europe/US/Canada will be one hour
more than it currently is.


Please share this information with your groups, as it may affect
teleconference schedules. If you are unsure about the scheduled time of
any teleconference, please confirm the time arrangements with your
meeting host.


The meeting planner tool below may be helpful for finding the time for
your web meeting across time zones:
https://www.timeanddate.com/worldclock/meeting.html <https://www.timeanddate.com/worldclock/meeting.html>


Best Regards,
Xueyuan Jia, Manager, Member Communications

Received on Friday, 17 October 2025 10:16:40 UTC