Calculate the next occurrence in a repeating day, week, month or year schedule with a transparent browser-based method.
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Review the method and limitations below.
Enter the first occurrence of a repeating event, how often it repeats (every number of days, weeks, months or years) and a reference date. The calculator steps the schedule forward from the first occurrence and returns the first occurrence that falls strictly after the reference date, with the days between them and its weekday.
Starting from the first occurrence, the interval is added repeatedly until the schedule passes the reference date. Day and week steps are exact; month and year steps keep the same day of the month, clamped to the last day of a shorter month.
The schedule runs 15 January, 15 April, 15 July and 15 October 2026. Asked for the next occurrence after 20 October 2026, the result is Friday 15 January 2027, 87 days later.
A monthly schedule starting 31 January 2026 steps to 28 February, then 28 March — once clamped, later steps build on the clamped date. An occurrence falling exactly on the reference date is not returned; the following one is.
This tool keeps the input dates, counting convention and result together so the answer can be checked.
Enter the first occurrence of the repeating event — the date the whole schedule is anchored to.
Enter how often it repeats: a number, with the unit set to days, weeks, months or years.
Enter the reference date. The schedule is stepped forward from the first occurrence, interval by interval, and the first occurrence falling strictly after the reference date is returned — one falling exactly on it is not.
Every 3 months from 15 January 2026 runs 15 January, 15 April, 15 July and 15 October 2026, so after 20 October 2026 the next occurrence is Friday 15 January 2027, 87 days later. Month and year steps keep the same day of the month, clamped to the last day of a shorter month — and once clamped, later steps build on the clamped date, so 31 January steps to 28 February, then 28 March.
A useful answer includes both the number and its assumptions.
Recurring Date Calculator calculates the next occurrence in a repeating day, week, month or year schedule using Gregorian calendar arithmetic. Dates are treated as date-only values, avoiding accidental time-of-day and daylight-saving shifts.
Answers about method, boundaries and edge cases.
The calculator steps the schedule forward from the first occurrence, interval by interval, and returns the first occurrence strictly after the reference date. Every 3 months from 15 January 2026, asked after 20 October 2026, the next occurrence is Friday 15 January 2027, 87 days later.
It is not returned — the result is the first occurrence strictly after the reference date.
Days, weeks, months or years, with any number as the interval.
Month and year steps keep the same day of the month, clamped to the last day of a shorter month.
Yes. Day and week steps are exact; only month and year steps clamp.
Use a neighboring method when the question changes.
Navjeet Kamboj is the author and editor of Age Calculator Lab. He focuses on making age, date, milestone and planning calculations easier to understand through clearly explained methods, practical examples and responsible limitations.