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Time.is

Exact time, time zones, and world clock — synchronized to atomic time.

★ 4.5
Our hands-on rating
FreeNo sign-upServer-side processingVisit Time.is ↗

✓ Pros

  • ✓Atomic-clock accuracy
  • ✓Beautiful world clock
  • ✓Free, no account

✗ Cons

  • ✗Information-focused (no planning tools)

Personal hands-on rating (2026-08). The most accurate online clock with beautiful timezone visuals.

Best for

Users checking exact time or comparing time zones.

Not for

Users wanting meeting planners (see worldtimebuddy).

Compare Time.is

epochconverter vs timeis →countdowntimer vs timeis →timeis vs worldtimebuddy →timeis vs timetree →

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Epoch Converter

★ 4.4

Convert Unix timestamps to readable dates and back — instantly.

✓ LocalNo sign-upFree

Time And Date Countdown

★ 4.4

Countdown timers, date calculators, and calendar tools.

No sign-upFreeServer-side

World Time Buddy

★ 4.3

Visual timezone converter and meeting planner for global teams.

No sign-upFreemiumServer-side