How to avoid missing a call when clocks change

A daylight saving time change can make a familiar call appear an hour earlier or later, depending on where you and the other person live. The safest approach is to put the meeting in a calendar with the correct city or time zone, then confirm the local times before the call.

Daylight saving dates differ by place, and some locations do not change their clocks. A time-zone-aware invite helps handle those differences without relying on mental math.

Set up the call so the time survives clock changes

1. Confirm the meeting city and time zone. Ask the organizer which city the stated time refers to, especially if an email only says something like 10 a.m. Use the World Clock to compare the current local times in the cities involved. It shows clocks and time differences for multiple places.
2. Use a calendar invitation, not just a time in a message. Ask the organizer to send a calendar event or create one yourself. Choose the named time zone for the meeting location, such as the city or region, rather than choosing a fixed UTC offset that may not account for seasonal clock changes.
3. Check how the invite appears on your calendar. Calendar apps usually display an event in your own local time while preserving the organizer's time zone. Compare the displayed time with the meeting location's local time. If they disagree, ask the organizer to confirm before accepting or editing the event.
4. Include the location in your confirmation. Reply with the time and city, for example, “I have the call at 10 a.m. New York time.” This makes it easier to catch a time-zone misunderstanding before the day of the call.
5. Set more than one reminder. Add an alert the day before and another shortly before the meeting. Make sure your computer or phone is set to update its date, time, and time zone automatically, so the reminder follows the clock change.
6. Recheck on the day. Open the calendar event and compare its time with the other person's city in World Clock. If the organizer has sent an updated invite, use the newest event rather than an old email or a note you wrote down earlier.

On Windows 11, check Settings › Time & language › Date & time and turn on automatic time and time zone if those options are available. On a Mac, check System Settings › General › Date & Time. On an iPhone, check Settings › General › Date & Time. On Android, search Settings for Date & time and look for automatic time and time zone options. A work-managed device may have some controls set by an administrator.

Choose what should stay fixed

Recurring calls can shift for one person when one location changes its clocks and another does not. Before setting a repeating event, agree on whether the call should stay at the same local clock time for a particular person or at the same time worldwide.

Keep the same local time for the host

If the host wants every call at 10 a.m. in their city, schedule the event in that city's time zone. When that location changes its clocks, a correctly configured calendar can keep the event at 10 a.m. for the host. Someone elsewhere may see the call move by an hour on their own clock if their location changes on a different date or does not observe daylight saving time.

Keep the same time worldwide

If the call must happen at the same moment everywhere, agree on a UTC time and have everyone check the corresponding local time. UTC does not shift for daylight saving time, but each person's local clock may shift relative to it. Write both the UTC time and the main participants' city times in the invite, then update the local examples when clock rules change.

Keep a weekly call convenient for everyone

For a recurring call across regions, review the schedule before each location's clock change. A meeting that works well for everyone in one season may become inconvenient for someone after the other region changes clocks. If the time difference changes temporarily, decide whether to keep the host's usual time or move the call for that period, and update the calendar event for all attendees.

Fix common time mix-ups

The invitation shows a different hour than the email

Do not assume one display is wrong. The email may show the organizer's local time while your calendar converts the event to your local time. Check the city and time zone attached to the event, then compare both local times with World Clock. If the organizer gave only a time and no location, ask them to clarify instead of changing the event yourself.

Your reminder seems to have moved

Check the event's date, time zone, and alert settings. Then check your device's automatic date and time settings. A device set to the wrong time zone can make both the calendar and its reminder look wrong, even when the invitation itself is correct.

The call is near the clock change

Some local clock changes happen overnight, when a clock skips an hour or repeats an hour. Avoid scheduling an important call during the skipped or repeated period if you can. If the timing cannot change, confirm the exact date, city, and time zone with the organizer, and use the calendar event as the source of truth.

Do not calculate a future meeting by adding or subtracting a fixed number of hours from today's time difference. That difference can change when either location changes its clocks. Confirm the event using the named time zone and the calendar close to the meeting date.