datetime InputFormat is returning month for minutes
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I'm very confused by the behavior of the datetime InputFormat string in MATLAB.
I have a date string such as "2025040901:42:23 PM"
I believe I am correctly using MM for two-digit month and mm for twelve-hour two-digit minutes. Why is the month always being returned as the minutes?
>> s = "2025040901:42:23 PM"
s =
"2025040901:42:23 PM"
>> datetime(s, 'InputFormat', 'yyyyMMddhh:mm:ss a')
ans =
datetime
2025-04-09 13:04:23
Change the month to prove that that is what is being shown.
>> s = "2025060901:42:23 PM"
s =
"2025060901:42:23 PM"
>> datetime(s, 'InputFormat', 'yyyyMMddhh:mm:ss a')
ans =
datetime
2025-06-09 13:06:23
采纳的回答
It is correct running your code here in R2024b.
s = "2025040901:42:23 PM";
datetime(s, 'InputFormat', 'yyyyMMddhh:mm:ss a')
s = "2025060901:42:23 PM";
datetime(s, 'InputFormat', 'yyyyMMddhh:mm:ss a')
更多回答（1 个）
Scott
2025-7-22
移动：Walter Roberson
2025-7-22
1 个投票
And to follow-up, I found that my preferences for the default date and time format (Preferences, MATLAB, Command Window) was mistakenly using "MM" for minutes, as in:
So the underlying data was correct, it was the display of the data that was incorrect. I don't know how this preference got set, but I'll take the blame for now.
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