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Server time checker

Enter a website address to see the clock its web server uses, to the millisecond, with an honest error range.

Only the domain is used. When you press the button, the domain is sent to Minuto’s measuring server, which sends a few short requests to that site and reads the time. Nothing is stored.

Popular sites

Site names are listed for convenience. Minuto is not affiliated with these sites.

This device’s time (server not checked yet)

Site measured
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Difference from this device
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Error range
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Last checked
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Check your own clock · Timer · Countdown

More time tools

How is it measured?

Every web server response carries a Date header with the current time in whole seconds, so a single reading can be off by up to a second. Minuto’s measuring server on Cloudflare sends several short HEAD requests to the site and narrows down the moment the second ticks over, which gives the offset to well under a second. It also measures the gap between that server and your device and combines the two. The ± value on screen is the largest error this method allows.

Why server clocks differ

Most servers sync with internet time (NTP), but some drift by hundreds of milliseconds or even seconds. Phone and computer clocks can be off too. Sales usually open by the seller’s server clock, so that is the clock worth watching.

Limits

  • A slow or unstable connection widens the ± range.
  • When a CDN caches responses, the Date header can be hours old. Minuto uses a fresh address each time and throws away cached responses, but some sites may still be inaccurate.
  • The main site and the actual checkout or queue servers can differ. If checkout runs on another domain, try that domain.
  • Knowing the server time does not guarantee a ticket. Queues and server processing order matter far more.

Using it for ticket sales

  1. Check the seller’s server time 5 to 10 minutes before the sale.
  2. Enter the target time (for example 10:00:00) and turn on the flash and beep.
  3. Refresh or press the button right at the target time. Pressing too early may just show a “not on sale yet” page.
  4. Don’t hammer the refresh button. Sites may treat it as abuse and block you or move you back in the queue.

FAQ

Is it accurate to the millisecond?
Milliseconds are shown, but the real accuracy is the ± value, usually tens to a few hundred milliseconds depending on the network.
Where does the address I type go?
Only the domain goes to Minuto’s measuring server (Cloudflare Workers), which contacts the site. The address and your IP are not stored or logged. Your last address and target time stay in this browser.
How often does it re-check?
Once a minute while the page is on screen, up to 20 times, to avoid putting load on the site.
What if my phone screen turns off?
The browser may pause, so the beep might not play. Keep the screen on near the sale time.