setting default date and time format in R2015a ?
5 次查看(过去 30 天)
显示 更早的评论
I have problems to set default date format in matlab R2015a version. After I enter the command to change the default date format, it seems not working:
datetime.setDefaultFormats('defaultdate','yyyy-MM-dd'); date
ans =
18-May-2015
datetime.setDefaultFormats('defaultdate','MM/dd/yyyy'); date
ans =
18-May-2015
The date format have not changed! What I did wrong here?
0 个评论
回答(2 个)
Walter Roberson
2015-5-18
The date() call does not return a datetime object: it returns a string in a fixed format. datetime() called without any parameters returns the current date and time as a datetime object.
2 个评论
Peter Perkins
2015-5-26
From the help:
"datetime.setDefaultFormats('default', FMT) sets the default display format for datetimes. The format is specified by the format string FMT.
datetime.setDefaultFormats('defaultdate', FMT) sets the default display format for datetimes that are created without time components. The format is specified by the format string FMT."
You might want:
>> datetime.setDefaultFormats('default','yyyy-MM-dd'); datetime
ans =
2015-05-26
But never showing the time for datetimes that are not at midnight might not be a good idea. Perhaps
>> datetime.setDefaultFormats('defaultdate','yyyy-MM-dd'); datetime('today')
ans =
2015-05-26
is a more relevant example.
Peter Perkins
2015-5-18
As Walter says, date is from the set of older functions that include datenum, datestr, and datevec. datetime was introduced in R2014b. Best to not mix the old with the new.
With datetime, there's no worries about converting back and forth between a numeric, a char, and a vector date/time representation. It's all in one place: datetime arrays.
Hope this helps.
0 个评论
另请参阅
类别
在 Help Center 和 File Exchange 中查找有关 Dates and Time 的更多信息
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!