Illustrative example. The dates and amounts below are provided for practice.
A reminder list needs to include an anniversary that is happening today. Otherwise a same-day review could hide the opportunity to call.
Use a friendship start of August 5, 2018, choose Friendship Anniversary, and calculate as of August 5, 2027. Completed Years is 9. Next Anniversary is August 5, 2027, with zero days remaining.
Move one day forward
Change the reference to August 6, 2027. The next occurrence becomes August 5, 2028, 365 elapsed days away. The interval includes the leap day in 2028 but begins one day after the previous occurrence.
The zero-day result includes today. It is not a demand to wait until next year. If you want the next strictly later annual date, calculate from tomorrow and label that reference.
Use the result as a prompt
Save the original date as an annual tracker record and put the action in its note. The tracker reminder operates when the site is open. Calendar notifications depend on the application receiving an export.
An inclusive sequence labels the reference date Day 1, while the elapsed countdown is zero. Neither label changes the fact that nine annual anniversaries are complete.