Jadpo is experimental and not ready for production. These docs follow the compiler's main branch as of 1 Nov 2026. What's built · Install 0.2.0
jadpo
Reference: Standard library

Standard types

OpeningHours

On this page

When a place is open each week and the days that differ, read by the clock in its zone (OpenStreetMap's opening_hours): Mo-Fr 09:00-17:30; Sa 10:00-16:00; 2026 Dec 25 off [Europe/London]. temporal.open_at asks whether it is open at an instant.

Time and calendar; not ordered; since Jadpo 0.1.0.

Make one

Build one from its text, OpeningHours("Mo-Fr 09:00-17:30; Sa 10:00-16:00 [Europe/London]"), which checks it: text that isn't one breaks format.

text.parse(raw, as: OpeningHours) reads one from its text; text that isn't one at all fails malformed, such as Mo-Fr 09:00-17:30, Mo-Fr 9:00-17:30 [Europe/London] or Mo-Fr 09:00-25:00 [Europe/London].

Text, JSON and storage

text.from writes its canonical text, the one form text.parse reads back. JSON sends its canonical text as a string.

Text JSON
Mo-Fr 09:00-17:30; Sa 10:00-16:00 [Europe/London] "Mo-Fr 09:00-17:30; Sa 10:00-16:00 [Europe/London]"
Mo-Th 17:00-23:00; Fr,Sa 17:00-02:00; 2026 Dec 25 off [America/New_York] "Mo-Th 17:00-23:00; Fr,Sa 17:00-02:00; 2026 Dec 25 off [America/New_York]"

It is stored in one column named for the field, of type text. Mo-Th 17:00-23:00; Fr,Sa 17:00-02:00; 2026 Dec 25 off [America/New_York] is stored as 'Mo-Th 17:00-23:00; Fr,Sa 17:00-02:00; 2026 Dec 25 off [America/New_York]'.

Shown to people

text.format(value, locale:) shows it to people in their locale.

With locale: Locale.en_gb:

Value Shown
Mo-Fr 09:00-17:30; Sa 10:00-16:00 [Europe/London] Mo-Fr 09:00-17:30; Sa 10:00-16:00 [Europe/London]
Mo-Th 17:00-23:00; Fr,Sa 17:00-02:00; 2026 Dec 25 off [America/New_York] Mo-Th 17:00-23:00; Fr,Sa 17:00-02:00; 2026 Dec 25 off [America/New_York]

Operations

  • temporal.open_at(hours: OpeningHours, at: Instant) -> Bool: Whether hours are open at at, by the clock in their zone.

Like every standard type, it also has the contract's own operations: text.parse, text.from, text.format, json.read, json.write and ==. It isn't ordered, so < and sorting don't take it. Every standard type meets one contract says how they work.

Markdown for agents: /docs/types/type-opening-hours.md.Built from Jadpo main at e00e61f.