How to use (3 steps)
- Pick the mode: count in range, Nth occurrence, or next occurrence (default already shows the monthly count example).
- Enter the start date (first occurrence), choose daily/weekly/monthly/yearly, set the interval, and add any exclusions or an end condition if needed.
- For range counting, set the period and whether to include the edges. For Nth/next, enter N or the reference date. Copy the summary, list, or share link when you’re done.
Date-only (no time zones). You can choose how to treat month-end days and Feb 29; exclusions apply before counting or searching.
Occurrences in range
Preview
How it’s calculated
- Occurrences start from the start date, then advance by the chosen interval (days/weeks/months/years) with your weekday or month-day pattern.
- Range counting includes both start and end by default; toggle the checkboxes for open intervals.
- Exclusion dates are removed before counting, Nth search, or next search. End conditions stop generation once reached.
- For month-end cases (31st) you can skip that month or use its last day. Feb 29 can be skipped or shifted to Feb 28/Mar 1.
Check recurring schedules before you share them
Use this guide with the recurrence counter when you need to count events in a date range, find the next occurrence, or confirm an nth occurrence without losing the rule behind the schedule.
How it works
Enter the start date, recurrence rule, range, and any weekday or month pattern first. The page counts matching dates from that rule and keeps the upcoming date, total count, and preview list together so you can audit the schedule.
When to use
Use it for subscription reminders, shift rotations, meeting cadences, billing dates, class sessions, and other schedules where the rule matters as much as the final count.
Common mistakes to avoid
- Counting from the wrong boundary date or forgetting whether the end date is included.
- Mixing every-n-days rules with weekday-only rules without checking the preview list.
- Ignoring skipped dates such as holidays, blackout days, or months without the requested day number.
- Sharing only the count without the start date, interval, and range that produced it.
Interpretation and worked example
For a meeting every 2 weeks, start with the first meeting date and set the range that your calendar actually covers. Compare the preview list with known meeting dates before copying the count or next occurrence.
See also
FAQ
How are range edges counted?
Both the range start and range end are included by default. Turn them off to use open intervals. When an end condition is set, occurrences after that point are not generated.
How do missing days like the 31st or Feb 29 work?
For day-of-month recurrences you can skip missing months or treat them as the last day of that month. For yearly rules on Feb 29 you can skip, use Feb 28, or use Mar 1.
Do exclusions affect counts and Nth/next searches?
Yes. Any occurrence date that matches an exclusion is removed before counting, finding the Nth occurrence, or picking the next date.
What should I define first for recurrence counting?
Set the start date, end date, recurrence rule, and excluded days first. Then review the generated count and sample dates to confirm the schedule matches the real calendar rule.
Why can recurrence counting results differ from nearby tools?
Differences usually come from date boundaries, recurrence rule, weekday handling, and exclusions. Match those assumptions before comparing this result with another CalcBE page, spreadsheet, or external tool.
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