how often does february start on a sunday and end on a saturday

For February to start on a Sunday and end on a Saturday, it has to be a common (non‑leap) year where February has 28 days and February 1 falls on a Sunday.

How often does that happen?

In the Gregorian calendar, the pattern of weekdays and leap years repeats every 400 years. Over such a 400‑year cycle:

• Calendar statisticians note that common years (non‑leap years) starting on any given weekday occur in a fixed distribution, and for February, this works out so that a 28‑day February beginning on a particular weekday happens roughly 3 times in every 28 years on average.

• Put a different way, a “perfect” February that starts on a specific weekday (like Sunday) shows up about once every 9 years on average, not once in “823 years” as some viral posts claim.

Concrete examples people are discussing right now:

• February 2015 started on a Sunday and ended on Saturday, with 28 days.

• February 2026 again starts on a Sunday and ends on a Saturday, forming that neat 4‑week block.

• The next such February widely cited is February 2037, which repeats the same Sunday‑to‑Saturday, 28‑day pattern.

So, in practical terms: February that starts on a Sunday and ends on a Saturday comes around fairly regularly—around once every decade or so on average, definitely not a once‑in‑centuries rarity.