Days Sober Calculator

From the Outpost team

100 days sober

100 days sober is your quit date plus 100 calendar days, reached at local midnight.

From 1 January that is 11 April in a common year and 10 April in a leap year, because the extra day in February is one of the hundred. It is not a round number of months.

Set your quit date and the calculator marks the day.

Leave the time blank to count from midnight. Today is day 0 until the next midnight.

Choose a date. Your count shows up here, on this device.

What date will I hit?

Counts forward from your quit date, or from today if you haven’t set one.

Milestones

They appear once you set a date. Day marks land at midnight. 24 hours is exact.

Money and drinks

Optional. An estimate from a typical week, spread across the exact time since your quit date.

About this mark

Is 100 days about three months?

Roughly, and not exactly. Three calendar months are usually 89 to 92 days. 100 days is past that more often than not.

How do I see my own date?

Enter your quit date below. “What date will I hit?” is set up for any number, and the 100-day row in the list is marked.