A year is 52 weeks and a day or two
365 days ÷ 7 = 52 weeks + 1 day; a leap year is 52 weeks + 2 days. The grid fixes each row at 52 boxes for neatness, so the boxes run a little over a day ahead every year.
So rows drift from your age
| Age | Days lived (approx.) | Weeks lived | Rows of 52 |
|---|---|---|---|
| 10 | 3,652 | 521 | 10 rows + 1 |
| 40 | 14,610 | 2,087 | 40 rows + 7 |
| 80 | 29,220 | 4,174 | 80 rows + 14 |
At 40 you are about a seventh of a row ahead; at 80, about 14 boxes. "Row number = age" is only approximate; tap a box for the exact age.
Weeks start on your birth weekday
Each box is "7 days counted from your birth". Born on a Tuesday, every box runs Tuesday to Monday. Splitting by calendar weeks starting Monday would make the first box shorter than seven days, and the weeks-lived count would no longer match the filled boxes.
Checking it in the app
The weekday on this week’s card
The card at the top of the Calendar tab in Life Calendar says "Weeks start on your birth weekday · Tue", and the day boxes show which day of this week today is. Sample text in the screenshot is Korean.
Tap a box for the exact age
Tap a box in the grid to see that week’s date range, your age and its week number. That is more precise than counting rows.
FAQ
How many boxes for a 90-year life?
90 × 52 = 4,680 boxes.
Can I view it by month or year?
Switch between Week, Month and Year on the Calendar tab. Months follow your birth date each month; years are one box per birthday.
Life Calendar
No sign-up, and your birth date and records stay on your phone. Free on Android.