Household timezone
One clock for the whole household.
Settings → Currency & region → Timezone. Pick your city. Reminders fire in the morning your time and the weekly digest goes out around 6 pm on Sunday (your household's local time) — not UTC.
Where it lives
Settings → Currency & region → Timezone. It's a household setting like your default currency — one value, shared by every member. Signup suggests a timezone based on your browser, so most households never need to touch this.
What it changes
Send times. Email reminders fire around 8am, the weekly digest around 6 pm on Sunday (your household's local time), and overdue alerts on their daily run — all in household-local time. Without a timezone set, everything defaults to UTC, which lands mid-afternoon or the night before depending on where you live.