Counting days: until and since
Short guides with tables and worked examples: how to count days by hand, in a spreadsheet and on your phone — and how to stop recounting them.
- How to count the days between two datesInclusive or not, days per month, a worked example and spreadsheet formulas — date to date without mistakes.
- How many days are in a year — and in several years365 or 366, days in 2–10 years, weeks and hours in a year, and how many months 100 or 1,000 days are — in tables.
- How many days until a date: Christmas, New Year, your birthdayDay-of-year numbers, a month-by-month table, a worked example — and a countdown on your phone’s screen.
- What happens when you quit smoking: a timelineA timeline from 20 minutes to 15 years based on WHO, NHS and CDC, the hard first days and a smoke-free day counter.
Let the days count themselves
Temfy: Countdown Days & Widget shows how long until an event and how long since a big day, down to the second. Widgets, reminders, habit streaks and milestones. Free for iPhone and Android.