How to count sober days
Does day one start the morning after your last drink? What if you slip? Here are the common conventions, how Sober Girl counts, and a calculator.
Most people count sober days from the first full day without a drink, so if your last drink was on Friday evening, Saturday is day one. Twelve-step groups often mark 24 hours, then 30, 60 and 90 days and a year [1]. Sober Girl counts from midnight at the start of the date you pick, or from the moment you set it if you pick today, and a day is a full 24 hours. After a slip, you can restart the count or keep a separate tally of alcohol-free days. Neither erases what you have done.
When does day one start?
There is no official rule. The two common conventions are:
- From the morning after your last drink. If you last drank on Friday night, Saturday is day one. This is the most common way people count, and it means your sober date is the first whole day without alcohol.
- From the moment of your last drink. Counting hours from your last drink. Day one ends 24 hours later.
Either is fine if you stick with it. What matters is that the number means the same thing to you every day.
Track it in Sober Girl
How Sober Girl counts
- You pick your sober date during setup, or later in Settings under "Sober since".
- If you pick a past date, the count starts at midnight at the beginning of that day.
- If you pick today, the count starts from the moment you set it, so the app never claims hours you have not had.
- A day is a full 24 hours. The home screen also shows hours and weeks, so the first days do not read as zero.
- Badges unlock at 1, 3, 7, 14, 30, 60, 90, 180 and 365 days.
Count yours now
Enter the date of your last drink. The calculator runs in your browser and stores nothing.
Pick a date to see your days, weeks, months and next milestone. Nothing you enter is stored or sent anywhere.
What to do after a slip
This is the part people find hardest. Three common approaches:
- Restart the count. Set a new sober date. This is what twelve-step groups traditionally do, and what most streak counters expect. In Sober Girl, change "Sober since" in Settings. Your journal stays.
- Keep the count and log the slip. Some people prefer a running total of alcohol-free days, which a slip only pauses. A drinking diary such as Try Dry works this way [2], and our alcohol-free days guide explains how to track it.
- Do both. A streak for motivation, and a total for perspective.
Research on recovery treats it as a process rather than a single unbroken line: NIAAA’s definitions describe stages of remission over months and years [3]. A slip does not undo what you learned. If slips keep happening, or you cannot stop once you start, that is worth telling a doctor about.
Counting in twelve-step groups
In AA and similar groups, coins or chips often mark 24 hours, 30, 60 and 90 days, then a year and each year after. There is no official AA coin, the system is optional, and colours and intervals vary by group [1]. If you are in a group, use its convention so your date matches.
Is Sober Girl right for you?
- use an Android phone (the iPhone app is coming soon)
- want a private tracker, with your journal kept on your device
- want a day counter, money saved and a daily check-in in one calm place
- want a Craving SOS with a breathing exercise and a 10-minute timer
- want to start free and add Plus only if you need the journal, insights or milestone cards
- need it on an iPhone today (the App Store version is coming soon)
- want a community feed, live coaching or an AI chat
- want a structured multi-week education program
- need medical help for heavy drinking or withdrawal. An app is not treatment, so see the safety notes above
Frequently asked questions
Is the day of my last drink day one or day zero?
Most people treat it as day zero and count the next full day as day one. Some count hours from the last drink instead. Pick one and stick to it.
How does Sober Girl count days?
From midnight at the start of the date you choose, or from the moment you set it if you choose today. Each full 24 hours is a day.
Do I have to restart my count after a slip?
It is your choice. Many people restart; others keep a running total of alcohol-free days. Both are valid.
How do I change my sober date in Sober Girl?
Go to Settings and tap "Sober since". The counter, money saved and milestones update from the new date.
How many days is 3 months sober?
About 90 days, which is why apps and many groups use 90 as the three-month milestone.
Sources
- Sobriety coin. Wikipedia (secondary source; it cites AA’s own FAQ and history books). Coin colours and intervals vary between groups.
- TRY DRY: The Dry January App on the App Store (US). Apple App Store listing, retrieved 6 October 2026, re-checked 10 October 2026.
- NIAAA Recovery Research Definitions. NIAAA. Research definitions for remission and recovery from alcohol use disorder, with duration bands.
How we write these. Every figure above links to the source it came from, and we label self-reported and observational results as such. Where we could not find a source we trust, the page says so instead of filling the gap. Sober Girl is made by ShipAI Lab and this is not medical advice. Sources were checked on 6 October 2026. If you spot an error, email us at integrateopenai@gmail.com.
Keep reading
Today is day one.
Sober Girl is a private sobriety tracker for women, on Android now and coming soon to iPhone: day counter, money saved, craving SOS and a tree that grows with you. Free to start.