Genshin Impact 3.5 maintenance is expected to start at 6 am (UTC+8) on March 1, 2023, and should last for five hours. During that time, Travelers will be unable to play the game. Veteran players should know this is what happens with every Version Update, so it's not unique to just Version 3.5.
The official Version Update preview states:
The above message is written in the year/month/day format. It is worth noting that Travelers on the western side of the planet will get this update's maintenance on February 28, 2023, due to how time zones work.
No delay has been announced for this new patch.
HoYoverse confirms the above maintenance times in this tweet while also showing off some of the new content that Travelers can expect to see. Here is a summary of what was revealed here:
Most of these changes will go live as soon as Genshin Impact 3.5 arrives. As helpful as this preview is, some players might not know how to convert UTC+8 to their time zone. Hence, the following sections of this article will include countdowns that should simplify things for such readers.
The above countdown will let players know how much time is left until maintenance starts for the new Version Update. This is not to be confused with when the new update goes live, as that's what the next countdown will display.
Nonetheless, this embed counts down to 6 am (UTC+8) on March 1, 2023. Remember that the game will be unplayable for five hours from now, which means that the downtime will last until 11 am (UTC+8).
This countdown is the one that shows players when Genshin Impact 3.5 will officially launch. It's for 11 am (UTC+8) and applies to every server since they're expected to get the update simultaneously with one another.
Travelers can also use this countdown
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