To-Do Due Dates Shift a Day? Fix Them
A due date shifts a day when a time zone converts a midnight deadline, or a date-only task gains a time during sync. Setting the task as date-only, and keeping zones automatic, stops the shift.

TL;DR / Quick Fix
Quick fix: open the task, confirm it is set as date-only without a time, and check the device time zone is automatic. Then correct the date once, sync, and check the same task on another device. Last, use times only when a task truly needs one to confirm it.
Follow these steps
- Open the task and check for a time. Open the task and see whether it has a time as well as a date. A midnight time is the classic cause of a one-day shift across zones.
- Set the task as date-only. Remove the time and keep only the date, if the app offers a date-only option. A date-only task has no midnight to convert, so it cannot shift a day.
- Check the device time zone. Confirm the device time zone is automatic and correct. A manual zone from travel can shift dated tasks by a day on that device.
- Correct the date once and save. Set the correct due date, save the task, and wait for sync. Correcting it on one device and letting sync carry the fix beats editing it everywhere.
- Check the task on another device. Open the same task on another device and confirm the date matches. A match confirms the shift is fixed, not just hidden on one screen.
- Use times only when a task truly needs one. Reserve timed due dates for tasks with a real deadline hour. Date-only tasks stay stable across zones and devices.

What NOT to do
- Do not keep correcting the date on every device. One correct save, followed by sync, fixes all devices at once.
- Do not set due dates a day early to compensate. That workaround hides the zone problem and confuses future planning.
- Do not ignore a shifted date for an important task. A one-day shift is still a missed deadline.
- Do not mix timed and date-only tasks for the same project without a reason. Mixed types make shifts harder to spot.
Frequently asked questions
Why does a due date move by one day?
A midnight time converts across time zones, or a sync adds a time to a date-only task, shifting the displayed date.
Will date-only tasks stay stable?
Yes. Without a time to convert, a date-only task shows the same date in every zone.
What if only one device shows the shift?
Then that device's time zone is the cause, even when the task itself is correct.