diffDays

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

Difference between two dates in days. Variants: diffMonths, diffYears, diffHours, diffMinutes, diffSeconds, diffWeeks.

• date1 (required): start date

• date2 (required): end date

echo '{"start": "2026-05-01", "end": "2026-06-15"}' \
  | utlx -e 'diffDays(parseDate($input.start, "yyyy-MM-dd"), parseDate($input.end, "yyyy-MM-dd"))'
# 45

let start = parseDate($input.startDate, "yyyy-MM-dd")
let end = parseDate($input.endDate, "yyyy-MM-dd")
{
  daysBetween: diffDays(start, end),
  weeksBetween: diffWeeks(start, end),
  overdue: if (diffDays(end, now()) > 0) "Yes" else "No"
}