ISO Repeat Utility

Parse and build ISO 8601 repeating intervals like R5/2026-03-29T09:00:00Z/P1D.

Parse an Expression

Paste a repeating interval to break down its repeat count and interval shape.

Repeat Rule
Repeats 5 times
Interval Shape
Start plus duration interval
Details

Start: 2026-03-29T09:00:00.000Z

Duration: 1 day, 2 hours (P1DT2H)

Readable start: Sunday, March 29, 2026 at 9:00:00 AM UTC

Build an Expression

Generate a canonical repeat string from a start instant and duration fields.

Generated Expression
R5/2026-03-29T09:00:00.000Z/P1DT2H
Readable Summary

Repeats 5 times starting Sunday, March 29, 2026 at 9:00:00 AM UTC every 1 day, 2 hours.