'yyyy-mm-dd hh:mm a' inputFormat in 'datetime' function

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Yu Li
Yu Li 2022-2-24
评论： Yu Li 2022-2-24
Hi:
I'm trying to convert a string to datetime, below are the result of two command:
datetime('2022-02-22 9:30 am','InputFormat','yyyy-mm-dd hh:mm a','TimeZone', 'America/New_York')
ans = 22-Jan-2022 09:30:00
datetime('2022-02-22 9:30 am','TimeZone', 'America/New_York')
ans = 22-Feb-2022 09:30:00
the 2nd returns the result I want, but I'm interest to know why the 1st is wrong.
Thanks!
Yu

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the cyclist
the cyclist 2022-2-24
Ran in:
The warning message you got from the first line tells you exactly what the problem is:
datetime('2022-02-22 9:30 am','InputFormat','yyyy-mm-dd hh:mm a','TimeZone', 'America/New_York')
Warning: The format 'yyyy-mm-dd hh:mm a' contains a field for minute (m) in what appears to be a date portion. You might have intended to use the symbol for month (M) rather than for minute (m). See the datetime.Format property for a complete description of the identifiers used in datetime formats.
ans = datetime
22-Jan-2022 09:30:00
You needed
datetime('2022-02-22 9:30 am','InputFormat','yyyy-MM-dd hh:mm a','TimeZone', 'America/New_York')
ans = datetime
22-Feb-2022 09:30:00
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the cyclist
the cyclist 2022-2-24
编辑：the cyclist 2022-2-24
Warnings are on by default. In your instance of MATLAB, this warning -- or possibly all warnings -- must have been turned off. I would recommended looking at this documentation, to understand how warnings get suppressed and restored.

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