What the site does
Exact Time Today is an independent collection of world clocks and time tools. Check the current time anywhere, convert times between time zones, and use a timer, stopwatch, countdown, or date calculator.
There are no ads, accounts, or analytics scripts. The pages are designed to load quickly, work on small screens, and stay easy to navigate with a keyboard.
What “server synced” means
The live clock starts with your device’s time. It then requests a timestamp from our server up to three times and uses the sample with the shortest round-trip network time. Half of that round trip is used as an estimate of the response’s travel time.
After synchronization, elapsed time is tracked with a monotonic browser timer. The clock checks again approximately every five minutes while visible and refreshes after returning to a stale background tab.
The displayed ± value is a network-delay estimate, not a certified error bound. Network paths can be asymmetric, server scheduling can add delay, and the server clock has its own error. We do not claim direct atomic-clock or NIST synchronization. Accuracy depends on the hosting system maintaining a correctly synchronized clock.
If synchronization is unavailable, the status changes to device time. Timers and event countdowns use your device clock; the stopwatch uses a monotonic browser clock. These tools are for everyday use, not precision measurement.
Where time zone rules come from
City clocks and date conversions use the browser’s Intl.DateTimeFormat implementation and its installed time-zone data. The location identifiers come from the IANA time-zone database. Governments can change offsets and seasonal rules, so keeping your browser and operating system current matters.
Explanatory city text describes common rules and provides context. The live clock applies the rules actually present in your browser, which may differ if a change is very recent. Future appointments should be checked again if local legislation changes.
Location and privacy
The home clock reads the time zone configured in your browser. It does not request GPS access or use an IP lookup. The displayed city is the representative city in that time-zone name; it is not a claim about where you physically are.
Performance
Static HTML provides the page content, links, and guides. Small JavaScript modules power the live clocks and interactive tools. Fonts and other assets are served by this site. Read the privacy details.