Schedule & Timezone Tools

Timezone converter — resolve civil-time daylight-saving (DST) folds or gaps and convert one local time between IANA zones.

Meeting availability intersection — find maximal common free time slots across participant calendars within a bounded window.

Cron next-run calculator — generate future times for bounded five-field POSIX cron schedules in IANA timezones with explicit daylight-saving (DST) policies.

Time interval merger — sort, deduplicate, and combine overlapping or adjacent RFC 3339 date-time ranges.

RRULE recurrence expander — generate bounded RFC 5545 iCalendar occurrences in IANA timezones with windows, work limits, and daylight-saving (DST) policies.