Master time,
across the globe.
Scrub through past and future hours in real time, plan conflict-free meetings, and stay in sync with every city that matters to you.
- 250+
- World destinations
- 0 ms
- Offline calculations
- 7
- Curated themes
- Free
- Core features
Experience TimeAtlas live
Scrub through time, watch day and night roll across six cities, and try each finish right in your browser.
Drag to preview up to 12 hours either way.
Everything you need for global time.
Engineered for speed, crafted for elegance, and private by default.
Interactive Time Scrubber
Drag the live 24-hour timeline back and forth. Every saved city re-calculates local time, daylight status and relative day offsets instantly.
Smart Group Meeting Planner
Add participant locations and working hours. TimeAtlas highlights the overlap windows where everyone is available.
Dual Digital & Analog Clocks
Switch between crisp digital numerals and classic sweeping analog dials tailored to your reading preference.
World Map & Solar Terminator
See daylight and night curves across continents with real-time location markers and solar line tracking.
Seven Curated Themes
Choose from Cosmic, Neon, Obsidian, Glass, Terminal, Classic Slate and Light themes to match your style.
Offline & Private by Design
Calculations run entirely on your device. No account, no background tracking, and full DST rule updates.
Zero-conflict global scheduling
Stop guessing across timezones. TimeAtlas finds the overlapping working hours for your remote teams and clients automatically.
San Francisco
US (PDT)
London
UK (BST)
Tokyo
JP (JST)
The best window for San Francisco & London is 14:00–17:00 UTC — morning on the West Coast, late afternoon in London.
24-hour overlap
Select any hour to compare local times
Top recommended slots
Designed for elegance & precision
Explore every screen of the TimeAtlas app, built for fluid native performance.
Home Clock
Digital and analog reference clocks with instant city comparison cards.
Precise calculations using the IANA timezone database.
Daylight Saving Time transitions handled automatically.
Hardware-accelerated, battery-friendly animations.
Loved by global teams.
TimeAtlas solved my daily headache of scheduling meetings between San Francisco, London, and Tokyo. The time scrubber slider is pure magic.
The theme engine and offline functionality make it my default travel app. It handles DST changes without throwing off my calendar.
Finally, a timezone app that doesn’t look like it was built in 2005. The clean analog dial UI is stunning.
Unlike default system clocks, TimeAtlas features an interactive 24-hour time scrubber slider, group meeting overlap finder, daylight terminator world map visualizer, and 7 customizable themes. You can drag time into the past or future to instantly see how every global city reacts.
Take TimeAtlas with you.
Available for iOS and Android. Take control of your global schedule with zero friction.
Requires iOS 15.0+ or Android 9.0+ · Privacy focused