need to find time difference between two time strings
2 次查看(过去 30 天)
显示 更早的评论
Hi I have two (as a sample) matlab serial date numbers which I want to find the gap between them. hours minutes and seconds. these are the time I have: d1 = 7.314983860995370e+005 d2 = 7.314983864467592e+005
any help is greatly appreciated
2 个评论
David Young
2014-12-16
These are not strings. Are they MATLAB serial date numbers (i.e. do they both refer to 9 October 2002), or are they something else?
采纳的回答
更多回答(1 个)
David Young
2014-12-16
Something like this:
% Some data. Making the gap between d1 and d2 bigger than in your example
% to provide a better check on results
d1 = 7.314983860995370e+005; % 09-Oct-2002 09:15:59
d2 = now;
% Difference in days
daydiff = d2 - d1;
% Subdivisions of days into hours, hours into mins, mins into secs
divisions = [1 24 60 60];
% Get number of days, hrs, mins and secs between times, rounded down
dhmsTotal = floor(daydiff * cumprod(divisions));
% Subtract days*24 from total hrs, etc., to get remainders
dhms = dhmsTotal - [0 dhmsTotal(1:end-1)] .* divisions;
dhms is now a vector with [days hours mins secs]. Note that the seconds are rounded down to whole seconds - if you want fractions of seconds, apply the floor function only to the first three elements of dhmsTotal.
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!