addQuarters

addQuarters(date, count) → date · Date & Time

Add (or subtract) quarters (3-month periods) to a date.

• date (required): the starting date or datetime

• count (required): number of quarters to add. Negative to subtract.

addQuarters(parseDate("2026-01-15", "yyyy-MM-dd"), 1)  // 2026-04-15
addQuarters(parseDate("2026-01-15", "yyyy-MM-dd"), 4)  // 2027-01-15 (1 year)