Most reminders you set are relative — "tomorrow", "next monday", "in two hours". For those to mean what you expect, Working Memory needs to know where you are. It figures that out automatically, but here's what's happening underneath.

How your timezone gets set

The first time you use the app, your device tells the browser what timezone it's in, and Working Memory saves that on your account. From then on, "tomorrow at 9" means 9am where you are, not 9am UTC and not 9am wherever the server happens to be.

You don't have to set anything. There's no dropdown to pick from.

When you travel

If you fly to a different timezone, your device's clock updates automatically when you land, and Working Memory picks up the new timezone the next time you open the app. A reminder you set in New York for "tomorrow at 9" and then travel to London for will fire at 9am London time the next morning if you set it before you fly, or 9am NY time if you set it before your phone switched — whichever wall-clock time you actually said.

If for some reason the timezone doesn't update (rare — usually a device that's been offline a while), you can set it manually in your account settings.

Daylight Saving Time

Handled automatically. If you set a reminder for "next sunday at 9am" before a clock change, and the change happens between now and then, the reminder still fires at 9am wall-clock on Sunday. You don't need to think about it. We don't try to be clever about ambiguous times during the fall-back hour (when 1:30am happens twice) — those resolve to the first occurrence, which is what most people want.

Scheduling for a different zone on purpose

Sometimes you want a reminder in a zone other than yours — say, you're in London and you want to remind yourself to call someone in New York at 9am their time. Say so explicitly:

The AI converts to your local time under the hood and the notification fires when it should. The reminder text keeps your original phrasing, so you'll see "9am New York time" on the notification — not the converted time, which would be confusing.

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