How to convert hours, minutes, seconds to seconds?
47 次查看(过去 30 天)
显示 更早的评论
Hi,
How can I return an array with
hh:min:sec
into
seconds?
For example
VarName2(1:5)
ans =
'14:54:25'
'14:54:25'
'14:54:25'
'14:54:26'
'14:54:26'
into a array with seconds?
0 个评论
采纳的回答
Daniel
2014-10-16
Assuming you mean seconds in the day
% initialize variables
NUM_SECONDS_PER_DAY = 86400.0;
timeStrings = {'14:54:25';'14:54:25';'14:54:25';'14:54:26';'14:54:26'};
% convert times to fractional days using datenum
timeFractionalDays = datenum(timeStrings);
% leave only the part with the most recent day fraction
timeDayFraction = mod(timeFractionalDays,1);
% multiply by number of seconds in a day
timeInSeconds = timeDayFraction .* NUM_SECONDS_PER_DAY
This produces the result
timeInSeconds =
1.0e+04 *
5.3665
5.3665
5.3665
5.3666
5.3666
8 个评论
Daniel
2014-10-16
Simply subtract the first value of the answer vector from itself.
% initialize variables
NUM_SECONDS_PER_DAY = 86400.0;
% convert times to fractional days using datenum
timeFractionalDays = datenum(VarName2);
% leave only the part with the most recent day fraction
timeDayFraction = mod(timeFractionalDays,1);
% multiply by number of seconds in a day
timeInSeconds = timeDayFraction .* NUM_SECONDS_PER_DAY;
% find answer starting from first value
timeInSeconds = timeInSeconds - timeInSeconds(1)
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!