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Ubify Core Engineering Team
SOFTWARE ENGINEERS & SYSTEMS ARCHITECTS
About This Tool
Coordinating meetings across distributed international teams requires finding overlapping waking and business hours without accidentally scheduling midnight calls for colleagues. This interactive matrix maps business hours across six primary global time zones: San Francisco (PST, UTC-8), New York (EST, UTC-5), London (GMT, UTC+0), Berlin/Paris (CET, UTC+1), Tokyo (JST, UTC+9), and Sydney (AEDT, UTC+11).
By moving the 24-hour UTC reference slider, you can observe local hour conversions in real time and pinpoint shared working windows (typically 09:00 to 17:00 local time).
### A Real Example You lead a team spanning New York (UTC-5) and London (UTC+0). You drag the slider to 14:00 UTC (2:00 PM UTC). The matrix immediately shows: - London: 14:00 (2:00 PM) - mid-afternoon work hours. - New York: 09:00 (9:00 AM) - morning workday start. - Berlin / Paris: 15:00 (3:00 PM) - late afternoon. This confirms 14:00 UTC as a mutually viable meeting window across European and North American Eastern time zones.
### How Your Data Is Processed All time zone conversions and slider calculations execute 100% client-side in your web browser. No meeting dates, participant locations, or schedule queries are sent to external servers.
How to Use
- 1
Adjust the 24-hour slider to select a reference time in UTC.
- 2
Scan the horizontal city cards to view converted local clock times.
- 3
Check local status indicators to identify overlapping business windows across your target regions.
Frequently Asked Questions
Which reference time base does the slider use?
The slider adjusts from 0 to 23 hours based on Coordinated Universal Time (UTC).
How are daylight saving adjustments handled?
The matrix uses standard regional reference offsets (such as UTC-5 for US Eastern and UTC+1 for Central European). For exact local daylight shifts, verify with local calendars around seasonal transition dates.
Are any schedule details sent to a server?
No. All calculations run strictly inside your local browser runtime.