How can I convert the serial date numbers in a text file to calendar dates

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Abigail Waring 2021 年 7 月 21 日

回答済み: Star Strider 2021 年 7 月 21 日

I have written a code to extract the x and y data from a plot

but the x data comes out as a serial date number and time and i'd like it in calendar months and time

Cris LaPierre 2021 年 7 月 21 日

Provide an example serial date and corresponding date and time

Abigail Waring 2021 年 7 月 21 日

722816.416666667 I believe is 31st dec 1978 10:00:00

Star Strider 2021 年 7 月 21 日

It appears to be a MATLAB date number, and if so, maps to 1 Jan 1979 10:00:00 —

DT = datetime(722816.416666667, 'ConvertFrom','datenum')
DT = datetime
   01-Jan-1979 10:00:00

MATLAB Language Fundamentals Data Types Dates and Time Calendar

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