iTime.live is a lightweight world clock and planning toolkit. It provides live UTC and local time, city clocks, timezone conversion, date calculations, and device clock comparisons.
How the live clock works
Your browser requests the current time from a Cloudflare edge location. The site measures the round-trip delay, estimates one-way latency, and keeps the display moving smoothly between periodic checks.
Browser time can never be guaranteed to the microsecond. Network paths may be asymmetric, operating systems schedule work differently, and screens refresh at finite rates. iTime.live is intended for everyday clock checks and scheduling—not certified, scientific, financial, legal, or safety-critical timing. Read the clock accuracy methodology for the measurement details.
World time tools
- World Clock: Live local time for more than 110 cities with automatic Daylight Saving Time handling.
- Device Clock Check: An estimate of how far your device clock differs from network time.
- Zone Converter: Convert meeting times between cities and identify business-hour overlap.
- Time Calculator: Add or subtract time across timezones while handling calendar and DST changes.
- Sun and Moon Data: Browser-calculated sunrise, sunset, daylight, and lunar information for supported cities.
Privacy and location
Location-based matching is performed in your browser. Coordinates are used to identify a timezone and nearby “Time Twin” but are not stored by iTime.live.
Project status
iTime.live is an independent web project maintained by iTime Engineering. The application is delivered as static pages with a small edge-time endpoint for fast global access.