Home › Weekday Before › If today is Tuesday, 4 days before

If today is Tuesday, what day was it 4 days before?

Answer: Friday

Weekdays repeat every 7 days. So we only need the remainder after dividing 4 by 7, then move backward that many days from Tuesday.

Quick rule:
remainder = 4 mod 7 = 4
move backward 4 day(s) from Tuesday
→ Friday

✅

Quick Answer

These sentences all describe the same result:

If today is Tuesday, 4 days before was Friday
4 days before Tuesday is Friday
Tuesday − 4 days = Friday
The weekday 4 days before Tuesday is Friday

🧮

We show the whole operation clearly (modulo 7).

Since weekdays repeat every 7 days: days mod 7 tells us how many steps to move backward.

Meaning: Jump whole weeks first (they don’t change the weekday), then move the remainder days backward.

Start at Tuesday and count backward 4 step(s).

Final: Tuesday − 4 days = Friday

📊

Common values going backward from Tuesday.

Tip: Any number of days that differs by a multiple of 7 lands on the same weekday.

⚡

Change weekday and day count to see the result immediately.

🔀

Check other weekday calculations going backward in time.