World Clock — Multiple Time Zones
Add as many world clocks as you like — analog or digital — for any time zone, with live date and time to the second.
About the World Clock — Multiple Time Zones
Working with people across the globe? The AlarmDaddy World Clock lets you build your own wall of clocks for every city and time zone you care about. Pick any IANA time zone (Asia/Kolkata, America/New_York, Europe/London and hundreds more), give it a friendly label, and choose an **analog** clock face or a big **digital** readout — per clock. Under each clock you get the full **date and live time to the second**, plus the GMT offset.
Add as many clocks as you need, switch any of them between analog and digital, and your set is **saved on your device** so it's exactly as you left it next time. Everything updates live every second and runs entirely in your browser — nothing is uploaded.
It's perfect for remote teams, freelancers billing international clients, traders, and anyone coordinating calls across time zones.
How to use this calculator
- 1Search and pick a time zone (e.g. Asia/Kolkata), add an optional label, and choose Analog or Digital.
- 2Press "Add clock" — repeat for every city you want.
- 3Toggle any clock between analog and digital, or set them all at once.
- 4Your clocks stay saved on this device; remove any with the trash icon.
The formula
The tool reads the current UTC instant once a second and formats it into each clock's time zone with the built-in internationalization engine, so daylight-saving changes and offsets are always correct. For analog faces, the hour hand is positioned at (hour mod 12 + minutes/60) × 30°, the minute hand at (minutes + seconds/60) × 6°, and the second hand at seconds × 6°.