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Add business days to a date
Move forward by a chosen number of Monday-Friday days while skipping supplied exclusions.
Calendars & dates
25 practical automations
Calendars & dates
Work with schedules, dates, and time. Each guide includes full code, usage instructions, and ideas for making it your own.
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Audit duplicate ICS identifiers
Find missing or repeated event UIDs in a local ICS file.
Calendars & dates
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Compare daily work windows
Find the UTC overlap between two local work windows on an explicit date.
Calendars & dates
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Compare date pairs
Calculate signed day differences for start/end date pairs.
Calendars & dates
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Convert an instant across time zones
Convert an offset-bearing timestamp into a selected IANA time zone.
Calendars & dates
PythonBeginner
Convert Unix timestamp lines
Convert Unix seconds into offset-aware UTC ISO timestamps.
Calendars & dates
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Count workdays with exclusions
Count chosen weekdays in an inclusive date range, excluding supplied dates.
Calendars & dates
PythonBeginner
Create a local ICS calendar
Turn explicit UTC event rows into an ICS file for manual import.
Calendars & dates
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Find gaps inside a time window
Merge busy intervals and list free gaps within explicit UTC bounds.
Calendars & dates
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Find missing dates in a sequence
Report absent daily dates between explicit inclusive bounds.
Calendars & dates
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Find next annual anniversaries
Find the next recurrence of month/day dates with an explicit leap-day policy.
Calendars & dates
PythonBeginner
Find schedule overlaps
Report pairs of offset-bearing intervals that overlap in UTC.
Calendars & dates
PythonBeginner
Find the nth weekday each month
List dates such as the second Tuesday of every month.
Calendars & dates
PythonBeginner
Generate a monthly date schedule
Generate a day-of-month recurrence with explicit skip or last-day handling.
Calendars & dates
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Generate selected weekday dates
List chosen weekdays within an inclusive date range.
Calendars & dates
PythonBeginner
Group dates by ISO week
Group ISO date lines by ISO week-year and week number.
Calendars & dates
PythonBeginner
Group events by UTC start date
Organize event labels beneath their UTC starting dates.
Calendars & dates
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Inspect ICS event fields
List stored summary, start, end, UID, and recurrence rule fields without expanding recurrences.
Calendars & dates
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Label dates by quarter
Add calendar year, quarter, month, and weekday labels to ISO date lines.
Calendars & dates
PythonBeginner
List month-end dates
Generate the final date of every month in a chosen year.
Calendars & dates
PythonBeginner
Make a date countdown report
Calculate days until named dates relative to an explicit reference date.
Calendars & dates
PythonBeginner
Merge simple ICS event files
Combine event-only ICS files containing UTC or all-day event times, refusing duplicate UIDs.
Calendars & dates
PythonBeginner
Normalize a list of dates
Parse dates using one explicit format and write ISO dates.
Calendars & dates
PythonBeginner
Shift a schedule in UTC
Move every event start/end by an explicit duration and write a new CSV.
Calendars & dates
PythonBeginner
Total interval durations by label
Sum recorded interval durations by label without merging overlaps.
Calendars & dates