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Timezones

Understand system and manual account timezones, fixed Event and Task zones, and date-only planning while travelling.

Before you begin

  • A signed-in Harmonise account

Harmonise saves a timezone preference on your profile. New timed Events and Tasks use that profile timezone, while each existing timed item keeps the timezone and exact moment saved for it.

Follow system or choose manually

Open Settings > Timezone. Choose Follow system, or search and select a location.

  • Follow system tells Harmonise to use your device timezone as the preferred source. If the device timezone later differs, Harmonise can ask whether to keep the current profile timezone or use the device timezone.
  • A manual choice stays fixed until you select another timezone or return to Follow system.

If a device timezone changes while you travel, the mismatch prompt can offer Not now, Keep current timezone, or Use device timezone. Choosing Not now leaves the current profile preference in place.

Account, Event, and Task timezones

The profile timezone is the default context for new timed items and displays. Each Event keeps the timezone used when it was created, and that Event timezone is fixed after creation. A Task also keeps the timezone used for its due or scheduled time.

Changing the profile timezone can change the displayed clock time for an existing timed value when Harmonise resolves it in the new profile timezone. It does not rewrite the saved moment or the Event or Task timezone.

Timed and date-only values

A timed Event, exact Task Due Date and Time, or timed Scheduled Date and Time represents a specific moment. Harmonise can display that moment at a different local clock time when your resolved profile timezone changes.

A date-only Due Date or Scheduled Date represents a calendar date rather than an exact moment. An all-day Event likewise stays attached to its Event date. These values should not shift by an hour merely because daylight-saving rules or the display timezone changed.

If a date-only item appears on an unexpected date, first confirm whether it is truly date-only or has an exact time, then compare the profile timezone with the item’s saved timezone.