Enter the current date and the number of years of sobriety into the calculator to determine the sobriety date.

Sobriety Date Formula

The following formula is used to calculate the sobriety date.

SD = CD - (D * Y)

Variables:

  • SD is the sobriety date
  • CD is the current date
  • D is the number of days in a year (365)
  • Y is the number of years of sobriety

To calculate the sobriety date, multiply the number of years of sobriety by the number of days in a year. Subtract this result from the current date.

What is a Sobriety Date?

A sobriety date refers to the specific day an individual with substance abuse issues makes a commitment to stop using drugs or alcohol and begins their journey towards recovery. This date is often considered a significant milestone and a point of pride, as it marks the start of their sobriety and is celebrated annually, much like a birthday. It serves as a reminder of the progress they have made in overcoming addiction.

How to Calculate Sobriety Date?

The following steps outline how to calculate the Sobriety Date using the given formula:


  1. First, determine the current date (CD).
  2. Next, determine the number of days in a year (D).
  3. Next, determine the number of years of sobriety (Y).
  4. Next, insert the values into the formula: SD = CD – (D * Y).
  5. Finally, calculate the Sobriety Date (SD).

Example Problem:

Use the following variables as an example problem to test your knowledge:

Current date (CD) = 2022-09-15

Number of days in a year (D) = 365

Number of years of sobriety (Y) = 3