Free Web Tools
Time Zone & UTC Tools
Live, client-side tools for time zone arithmetic, second-exact UTC time, and commercial transport compliance.
Digital Clock
Live UTC Clock & ISO 8601
Real-time Coordinated Universal Time clock with milliseconds, ISO 8601 formatting, Unix timestamp, and automatic local offset detection.
Commercial Transport
Digital Tachograph UTC Converter
EU Regulation (EU) No 165/2014 compliance converter. Calculate exact UTC entry times from local wrist-watch time to prevent ITD/DVSA fines.
Remote Work
World Clock & Awake Overlap Calculator
Calculate shared awake hours between remote offices, global clients, and overseas family members.
Timezone: World Clock Widget
Enjoying these tools? The Timezone iOS app brings these features to your Lock Screen, Home Screen widgets, and offline Apple Watch.