Daylight Saving Time Planning

Daylight saving time can change meeting times by one hour for only some participants. The United States, Europe, Australia, and New Zealand do not always change clocks on the same dates, while many regions never change clocks.

What to Check

For recurring meetings, check the schedule around March, April, October, and November. If the meeting includes Singapore, Tokyo, or UTC-based teams, remember that those times may stay fixed while New York, London, or Sydney shifts.

Safer Scheduling

Use city-based time zones, send calendar invites, and confirm the local time in writing for high-stakes meetings such as interviews, launches, client calls, and travel connections.

Practical example workflow

Start with the city or official time zone, not only an abbreviation. Abbreviations can be reused in different regions, while city-based zones account for daylight saving changes and local rules.

When planning across countries, write the full date, local time, time zone, and UTC offset. This prevents the common mistake where one person reads a deadline or meeting time using their own local date.

Quality checks before sending an invite

Check daylight saving transitions near the meeting date, especially in March, April, October, and November. Some places change clocks while others do not, and recurring meetings can shift unexpectedly.

For travel, legal deadlines, exams, financial markets, immigration, or medical routines, confirm the final time with the organization or professional responsible for the event.