Sobriety anniversary calculator
Pick your sober date and see every annual anniversary from year one through fifty, with the next one highlighted.
A sobriety anniversary calculator takes one input, the date you stopped drinking, and maps out every annual mark you'll hit from your first year through fifty years sober. Sometimes called a soberversary or a sober birthday, the anniversary is the same calendar date as your sober date, every year. The calculator just does the arithmetic for the longer-term ones, especially handy when you're trying to set a reminder ten or twenty years out.
This page is annual-only. If you also want the sub-year marks (one week, 30 days, 90 days, six months), the sober milestones calculator covers those. If you haven't quit yet and want to project a future anniversary, the quit drinking date calculator does that. For the running day count itself, the main sobriety calculator on the homepage is the right tool.
How a sober anniversary date is calculated
Each anniversary is your sober date, with the year incremented by
N. We use setUTCFullYear on a UTC-anchored copy of
your start date, so the result lands on the same month and day in
year N. Time-zone shifts do not affect which calendar day the
anniversary falls on.
A start date of 29 February doesn't have a literal anniversary three years out of four; the calculator rolls those to 1 March, which is the convention most recovery communities use. Leap years still land on 29 February as expected.
Full derivations and source citations live on the methodology page.
Sobriety anniversary: questions people ask
What is a sobriety anniversary?
The annual mark of the date you stopped drinking. If your sober date is 14 March 2022, your first sobriety anniversary is 14 March 2023, second is 14 March 2024, and so on. Some traditions count from the last day you drank, others from the first full day without alcohol; either is fine as long as you're consistent.
What is a soberversary?
Same thing, friendlier word. "Soberversary" and "sobriety birthday" are informal names for the annual anniversary of your sober date. There's no canonical term, use whichever feels right.
Is a sober birthday the same as a sobriety anniversary?
Yes. "Sober birthday" is one of the older recovery-community names for the annual anniversary. It's not the same as your actual birthday; it's the calendar date you mark each year since you quit.
When is my next sober anniversary?
Same month and day as your sober date, this year or next. Enter your sober date above and the calculator highlights the next anniversary in the list, with how many days away it is.
What if my sobriety date is February 29?
Three out of every four years there is no February 29 to land on. The calculator rolls to March 1 in non-leap years, which is the convention most recovery communities use. In a leap year, your anniversary lands on the 29th as expected.
How far out can the calculator project anniversaries?
Up to fifty years. The annual marks shown are 1, 2, 3, 4, 5, 10, 15, 20, 25, 30, 40, and 50 years from your sober date. Long-term recovery anniversaries past 50 use the same math, walk forward one year at a time.