Atomic Clock & UTC Converter

World Clock

• Mountain Time (you)—
• Eastern Time—
• Central Time—
• Pacific Time—
• UTC—
• London (GMT/BST)—

Convert a Specific Time

Enter a date and time: This time is in: Mountain Time (MT) Eastern Time (ET) Central Time (CT) Pacific Time (PT) UTC London (GMT/BST) Paris / Rome (CET) Tokyo (JST) Sydney (AEST) Convert to: UTC Mountain Time (MT) Eastern Time (ET) Central Time (CT) Pacific Time (PT) London (GMT/BST) Paris / Rome (CET) Tokyo (JST) Sydney (AEST)

Quick: UTC → My Local Time

Paste a UTC time string (e.g. 2026-02-25T18:30:00Z or just 18:30 UTC):