Why Use This Atomic Clock?
1,000,000x more accurate than your computer clock
Syncing with atomic time servers via NTP.
Check exact time in 60+ world cities, convert your local time to any timezone, and find the shared working window when your team in Tokyo, New York, or Berlin is all online. All times are synced to atomic clocks via NTP—no app install required.
Atomic clock sync
Connects directly to global NTP servers (NIST, Google) with 50 millisecond accuracy.
Latency correction
Calculates your network response time and corrects automatically - the most accurate clock in Israel.
When does it save you?
Frequently Asked Questions
What is an atomic clock?
An atomic clock uses the vibration of atoms to keep extremely accurate time. This tool connects to atomic time servers via NTP to show you the correct time, correcting for your device's drift.
How accurate is this?
Within 50 milliseconds of atomic time. We compensate for network latency so the displayed time reflects true atomic time, not just the raw API response.
What is a shared working window?
It's the time range when you and colleagues in different cities are all during business hours. We calculate when 09:00–17:00 in your chosen city overlaps with your local work hours.