Beefy Boxes and Bandwidth Generously Provided by pair Networks
Clear questions and runnable code
get the best and fastest answer
 
PerlMonks  

Re: epoch reduction

by fullermd (Priest)
on Apr 20, 2012 at 06:39 UTC ( #966103=note: print w/replies, xml ) Need Help??


in reply to epoch reduction

Assuming that by 'epoch time' you mean time_t, you don't need to convert to some other form. Since time_t is a lying liar and pretends every day is exactly 86400 seconds long, you can just do some /'s and %'s to find which fit in the same day and the highest for the day.

(of course, because of the undefined behavior around leap seconds, you can't really be sure whether % 86_400 == 0 is actually 00:00:00 or 23:59:60, but I think most systems repeat the 86399th instead. And since you can't tell anyway, it probably doesn't matter)

Log In?
Username:
Password:

What's my password?
Create A New User
Node Status?
node history
Node Type: note [id://966103]
help
Chatterbox?
and the web crawler heard nothing...

How do I use this? | Other CB clients
Other Users?
Others meditating upon the Monastery: (2)
As of 2016-09-26 00:51 GMT
Sections?
Information?
Find Nodes?
Leftovers?
    Voting Booth?
    Extraterrestrials haven't visited the Earth yet because:







    Results (474 votes). Check out past polls.