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.

1719763200

ISO instant

Portable UTC timestamp for logs and payloads.

2026-06-30T12:00:00Z

ISO week

Week-number notation for planning and reporting.

2026-W27

ICS date

Calendar event timestamp shape.

DTSTART:20260630T120000Z

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