Developer reference
Date and Time Conversion Cheatsheet
Timestamp, ISO date, timezone, duration, and calendar reminders for browser-local time workflows.
Unix seconds
Common API timestamp shape in seconds.
1719763200ISO instant
Portable UTC timestamp for logs and payloads.
2026-06-30T12:00:00ZISO week
Week-number notation for planning and reporting.
2026-W27ICS date
Calendar event timestamp shape.
DTSTART:20260630T120000Z