Three questions: how far apart two dates are, and what date lands a given span before or after another. Alongside the total you get whole weeks, weekdays, weekend days and the day of the week the answer falls on.
Every step is integer arithmetic on the date parts — no clock, no timezone, no daylight-saving boundary that can quietly shift an answer by a day.
No. It counts Mondays to Fridays only. Philippine holidays are proclaimed annually and move — a regular holiday can be shifted to a Monday, and special non-working days are declared with little notice — so a built-in list would be wrong within the year it shipped. If you need working days net of holidays, subtract the proclaimed ones for your period.
28 February, or 29 February in a leap year. It does not roll forward to 3 March. That is how people read "one month later", and it is how contractual periods are usually counted — but check your contract, because some define a month as 30 days.
Because months have different lengths. This adds months first and then days, which matches how "one month and three days" is read. Adding the days first can land on a different date at month ends.
The day is clamped to the target month rather than spilling into the next one.
Calendar weekdays only. Philippine holidays move every year, so none are excluded here.
Calendar arithmetic only. Weekday counts do not exclude holidays. Nothing you type here is sent to our servers — the calculation runs entirely in your browser.
