Exam countdown — days left until each of your exams

How to use the exam countdown

1. In Exams (subject, YYYY-MM-DD), type one exam per line, for example Maths, 2026-11-16. You can also write the date first: 2026-11-25, Biology.
2. Leave Count from on today, or set another date, for example the day your study leave starts.
3. Read the top line for the days until your next exam and until the last one.
4. Use the table to see each exam’s date, the days left, and how many of those are weekdays and weekend days.

What it does and when to use it

A list of exam dates is hard to plan with. Turning each date into a number of days, and seeing how many of those days are weekends, shows how much time you really have. If your weekdays are full of classes or work, the weekend column is often your main study time.

Once you know the days left, the revision timetable planner can share those days among your subjects. The spaced repetition planner checks that your last review falls before the exam, and the attendance calculator helps if attendance affects whether you may sit the exam.

How it works

Every date is turned into a day number (days since 1 January 1970 on the calendar, not a clock time). Days left is the exam’s number minus the “Count from” number. Leap years follow the Gregorian rule: every fourth year, except century years not divisible by 400. So 2028 has a 29 February and 2100 will not.

Exams are sorted by date. For each upcoming exam, the tool counts the weekdays (Monday to Friday) and weekend days (Saturday and Sunday) from the “Count from” date through the day before the exam. Everything runs in your browser.

Worked examples

Three exams, typed in any order. Counting from Wednesday 7 October 2026, with Chemistry on 20 November, Maths on 16 November and “2026-11-25, Biology”. Maths comes first: 40 days left, of which 28 are weekdays and 12 are weekend days. Chemistry follows in 44 days and Biology in 49.

Across a leap day. Counting from Sunday 27 February 2028 to Physics on Wednesday 1 March 2028 gives 3 days: Sunday (weekend), then Monday 28 and Tuesday 29 February (weekdays).

Past and invalid dates. Counting from 7 October 2026, Music on 1 October shows “done”, Art on 7 October shows 0 days, and “Drama, 2026-02-30” is listed as “Could not read” because 30 February does not exist.

Limits and tips

• Times are ignored. A morning exam and an afternoon exam on the same day both show the same number.
• The weekday count includes today; if you have classes all day today, take one off.
• Add the date of a mock exam or a coursework deadline too; it works the same way.