Time zone overlap: guides & tool
Time zone overlap (often spelled timezone overlap) is the shared window where everyone you’re scheduling with is in “normal work hours” at the same instant. It’s the answer to “when can we actually meet?” — not merely what time it is in another city.
SyncZones draws that window as a free overlap visualizer: up to five regions, business hours highlighted, click any column to copy times, and one shareable URL for Slack or calendar invites. Pair this hub with the guides below when you care about a specific corridor (transatlantic, US–India, US–Africa) or Outlook / Teams behaviour.
Use the tool first
Add zones, pick the meeting date, then copy times or share the link before you lock the slot in Outlook or Google Calendar.
Open SyncZones — free, no sign-upCity & region pairs
- London ↔ New York — overlap windows, transatlantic DST
- Pre-filled: London & New York in the tool
- US ↔ India (IST) — high-volume corridor
- New York ↔ Lagos
- US–Europe DST gap — when recurring meetings drift
Scheduling workflows
- Meeting scheduler for different time zones — browser workflow
- Schedule meetings across time zones in Outlook & Teams
- How to schedule meetings across multiple time zones
- What is timezone overlap? (long-form guide)
FAQ
- What is time zone overlap?
- The period when everyone’s working hours intersect — the fair window for live meetings.
- Overlap vs. a “timezone overlap calculator”?
- Same intent: find intersecting hours. SyncZones emphasizes a visual grid and shareable link rather than a single number.
- Does this page replace corridor blog posts?
- No — it routes you to them. Use this hub for internal linking and quick navigation; use each guide for depth.