Time Zones: Plan Meetings

A useful meeting time depends on the date, the participants’ time zones and their actual availability. Use this checklist to compare a proposed time, send a clear invitation and decide when a written handoff is a better fit.

Start with the date and the named time zone

UTC+01:00 gives an offset from Coordinated Universal Time (UTC). Europe/Berlin names a time zone with rules for its offset on a given date. The W3C draft guidance explains why a future event intended to follow local time needs its time zone, not just a fixed offset. Ask participants for their city or named zone and their available hours.

Compare the actual meeting date

The IANA Time Zone Database is updated when authorities change time-zone boundaries, UTC offsets or daylight-saving rules. Locations can change clocks on different dates or keep the same offset all year. Check the proposed date using up-to-date time-zone data; today’s difference may not apply to a future meeting.

• Confirm the date: Include the day, month and year. Check whether the meeting falls on a different local date for anyone.
• Check availability: Compare the proposed times with each person’s actual working hours, breaks and days off.
• Send the invitation: Set an explicit time zone in the calendar invitation, show the relevant local times and ask participants to confirm.

Keep recurring meetings tied to a zone

The W3C draft’s recurring-event guidance describes keeping a recurring event tied to its intended local time and zone. For a weekly meeting meant to stay at 09:00 in Berlin, keep Europe/Berlin as the governing zone. Other participants’ local times can shift when clock rules differ. Review upcoming occurrences around clock changes.

Compare cities with Lumelis Time

Open Lumelis Time’s time-zone comparison to add cities, select an hour in the grid and copy a summary. The grid uses the current date, so verify a future meeting separately in your calendar. The colored hour bands are general guides; confirm availability with the people involved.

When no shared time works

Consider a written update when a live meeting adds little. Include the context, decisions, next action and the person responsible. Give any deadline a full date, time and explicit zone. If an inconvenient live meeting is necessary, discuss rotating the burden instead of assuming the same person can always attend.