Online Clock
Show the current time based on geolocation
Features
Display based on server time
Display time unaffected by device clock drift
Switch between world time zones
Choose from major cities around the world, including Asia, Europe, and the Americas
Remembers your time zone choice
Saves the chosen city in your browser to show the same display next time
Shows date, day of week, and time difference too
Shows the date, day of the week, and UTC offset alongside the time
How to Use
Open the page to check the time
On access, the current time, date, and day of the week are automatically shown large
Switch the time zone
Change the displayed time by choosing a city, arranged by region, from the dropdown below the clock
Use Cases
Setting the time on your own clocks
Compare with the time on screen to adjust your wristwatch or wall clock
Checking time differences with overseas offices
Show the local time of the other city to consider time slots for web meetings or contact
Waiting for ticket sales to start
Use the second-by-second display to not miss the moment a sale or application opens
A desk clock for remote work
Show a clock with large digits on a sub-screen to help manage your time
Basic Knowledge
What is Japan Standard Time (JST)?
Japan Standard Time is Japan's standard time based on the 135° East meridian passing through Akashi, Hyogo Prefecture, and is 9 hours ahead of Coordinated Universal Time (UTC). In timezone notation, it is written as JST or UTC+9.
Why Your Computer's Clock Drifts
Built-in clocks in computers and smartphones have the property of gradually accumulating small errors. Normally, they are automatically synchronized and corrected via network time protocol (NTP) servers. If synchronization is not working, the displayed time will gradually drift.
Safety and Privacy
Server-side processing
Input is processed on the server; only information necessary for the inquiry is sent.
Temporary processing only
For time zone detection, temporary processing occurs on the server, then data is discarded after results are returned.
Communications encrypted with HTTPS
All sent and received data is encrypted by TLS and cannot be read by third parties.
No transmission to third parties
Input content is not sent to external services such as ad networks or trackers.
Transmission to location API only
For location information retrieval, only the target IP is sent to external APIs.
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