What is the history of the 37:30 hour format in Excel? Why 37 ?

Hello Christophe,

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Based on your description, I understand that you would like to know why 37:30:55 is used as an example for the “Time” format in Excel’s “Format Cells” window.

At this time, I have not found any official information explaining any particular historical significance of the number 37 in this format.

It is possible that 37:30:55 is simply used as an example to illustrate a duration longer than 24 hours, rather than because the number 37 has any particular historical significance.

 I hope this information is helpful.

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