diffWeeks

diffWeeks(date1, date2) → number · Date & Time

Difference in weeks between two dates.

• date1 (required): start date

• date2 (required): end date

let start = parseDate("2026-05-01", "yyyy-MM-dd")
let end = parseDate("2026-05-22", "yyyy-MM-dd")
{
  weeks: diffWeeks(start, end)    // 3
}