Problem 2198. Find my birthday

Created by Swapnali Gujar
Appears in Date & Time I

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Given a birth date x, find my age when my birth day will fall on the same day as I was born. So if I was born on Monday, what age will I be when my birthday once again falls on a Monday.
There can be multiple outputs of this. You need to return first occurrence.

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Last Solution submitted on May 13, 2025

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Paul Berglund on 23 Mar 2014

The answer for '29-Feb-1970' should probably be NaN

Rafael S.T. Vieira on 4 Sep 2020

There is no 29th on February 1970. The solution is to count it as the 50th day of the year, but this should be stated at the problem description.

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Problem 2198. Find my birthday

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Last 200 Solutions

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Problem 2198. Find my birthday

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Last 200 Solutions

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PIVlab surpasses 100K all-time File Exchange downloads

Problem Recent Solvers80

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