San Francisco
United States · US
03:00:00
Timezone
America/Los_Angeles
Offset
GMT-7
Local date
Thu, May 21, 2026
Unix seconds
1779357600
Compare
United States · US
03:00:00
Timezone
America/Los_Angeles
Offset
GMT-7
Local date
Thu, May 21, 2026
Unix seconds
1779357600
China · CN
18:00:00
Timezone
Asia/Shanghai
Offset
GMT+8
Local date
Thu, May 21, 2026
Unix seconds
1779357600
Time difference
Beijing +15h
Date relation
same day
Next shared work window
No shared work window in 48h
Workday rule
09:00–18:00 local time
The live clocks show local time, offset, date relation, and overlap first. Then hand the same pair to the planner, board, or invite builder.
Offsets are current GMT differences; timezones are named rules that can shift with DST. For future meetings, keep the city timezone and selected instant together.
Same/next/previous day is calculated from each city’s local date, so it catches midnight crossings that a simple hour difference can hide.
DST can change this pair’s offset on another date. Use the meeting planner or calendar builder with a fixed time before sharing.
Workflow handoff
Keep the same cities and selected instant as you move from comparison to planning, board review, and invite creation.
Open the planner with both cities and the current instant preserved, then choose a scored overlap window.
Plan meetingSend the pair to the timezone board for a shareable multi-zone view with the same reference time.
Open timezone boardBuild Google Calendar, Outlook, and ICS links with title, duration, base timezone, cities, and fixed time carried over.
Build calendar linkIf this is a future meeting, compare with the exact date because DST can change the offset even when city names stay the same.
Plan meetingBeijing is currently +15h relative to San Francisco, with this date relation: same day. For midnight crossings, use the date relation instead of reading only the hour difference.
The next shared 09:00–18:00 work window is No shared work window in 48h. If that slot is too early or too late for one side, open the meeting planner and compare another candidate instant.
San Francisco ↔ Beijing has daylight-saving risk on at least one side. For future or recurring meetings, do not store only +15h; keep America/Los_Angeles and Asia/Shanghai, then re-check around DST transition weeks.
Use this page to verify offset and day relation, open the same cities in the meeting planner, then publish Google Calendar, Outlook, and ICS links from the Calendar Link Builder.