datevec back to regular time
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Jo Bremer Balestracci
am 9 Nov. 2020
Kommentiert: Walter Roberson
am 9 Nov. 2020
I am using datevec and performing calulations. The end result needs to be converted back to a regular time for the user. I have tried different things and I am still am getting the result I want. I did not put a date in which I normally do using the Date Picker. Can you help me?
t=datevec(state.TimeHHMMssEditField); % where state.TimeHHMMssEditField = 1:31:00
desiredTime = t(4) *3600 + t(5) * 60 + t(6);
NewTime =desiredTime % 5460
StartTime = NewTime + .5 %5460.5
Duration = (state.DurationinsecondsEditField)' % where state.DurationinsecondsEditField = 30 seconds
EndTime = StartTime + Duration %5490.5
% EndTime is in seconds. I want to convert the EndTime (5490.5) to look like 1:31:35
How do I do this?
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Walter Roberson
am 9 Nov. 2020
datestr(EndTime/(3600*24),'HH:MM:ss')
However, this will have leading 0 . Leading 0 is used automatically if you do not use AM indicator.
I would recommend, by the way, that you switch to using datetime and duration objects, which make the code a lot cleaner.
5 Kommentare
Walter Roberson
am 9 Nov. 2020
'HH:MM:ss.ff' for serial datenum work.
'HH:mm:ss.SS' for datetime() work.
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Steven Lord
am 9 Nov. 2020
I second Walter Roberson's suggestion to skip the datevec form and to use duration.
t = '1:31:00'
du = duration(t)
newtime = du + seconds(0.5)
newtime.Format = 'hh:mm:ss.SSS' % Show fractional seconds
newt = string(newtime) % or char(newtime)
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