Questions
How accurate is this clock?
The page asks the server for the time five times, keeps the fastest reply and corrects for the network delay. The result is usually within a few tens of milliseconds, and the accuracy is shown on the page.
Why is my computer clock wrong?
Computer and phone clocks drift a little every day and are corrected by syncing with a time server. If automatic time is turned off or the sync fails, the clock can be off by seconds or even minutes.
How do I set my clock to the exact time?
Turn on automatic date and time in your system settings. Windows, macOS, Android and iOS then sync with an internet time server on their own.
What is UTC?
Coordinated Universal Time, the reference time used around the world. Time zones are written as an offset from it, such as UTC+03:00 for Turkey.