unix-timestamp

Regarding Unix (POSIX) time, Wikipedia says: Due to its handling of leap seconds, it is neither a linear representation of time nor a true representation of UTC. But the Unix date command does not seem to be aware of them actually $ date -d '@867715199' --utc Mon Jun 30 23:59:59 UTC 1997 $ date -d '@867715200' --utc Tue Jul 1 00:00:00 UTC 1997 While there should be a leap second there at Mon Jun 30 23:59:60 UTC 1997 . Does this mean that only the date command ignores leap seconds, while the concept of Unix time doesn't? Thomas Jung The number of seconds per day are fixed with Unix timestamps .

I have a datetime field(P_DT) and I would like to return all results where P_DT is greater then an input unix timestamp. Does Oracle have any built in functions that can help? In my searchs I find resuts for DateTime to Unix but no Unix to DateTime... There are no built-in functions. But it's relatively easy to write one. Since a Unix timestamp is the number of seconds since January 1, 1970 CREATE OR REPLACE FUNCTION unix_ts_to_date( p_unix_ts IN NUMBER ) RETURN DATE IS l_date DATE; BEGIN l_date := date '1970-01-01' + p_unix_ts/60/60/24; RETURN l_date; END; which you can see being called SQL>

Is there a MySQL function which can be used to convert a Unix timestamp into a human readable date? I have one field where I save Unix times and now I want to add another field for human readable dates. CristiC Use FROM_UNIXTIME() : SELECT FROM_UNIXTIME(timestamp) FROM your_table; See also: MySQL documentation on FROM_UNIXTIME() . User What's missing from the other answers (as of this writing) and not directly obvious is that from_unixtime can take a second parameter to specify the format like so: SELECT from_unixtime(timestamp, '%Y %D %M %H:%i:%s') FROM your_table I think what you're looking

I have to create an "Expires" value 5 minutes in the future, but I have to supply it in UNIX Timestamp format. I have this so far, but it seems like a hack. def expires(): '''return a UNIX style timestamp representing 5 minutes from now''' epoch = datetime.datetime(1970, 1, 1) seconds_in_a_day = 60 * 60 * 24 five_minutes = datetime.timedelta(seconds=5*60) five_minutes_from_now = datetime.datetime.now() + five_minutes since_epoch = five_minutes_from_now - epoch return since_epoch.days * seconds_in_a_day + since_epoch.seconds Is there a module or function that does the timestamp conversion for

I have a string and I need to find out whether it is a unix timestamp or not, how can I do that effectively? I found this thread via Google, but it doesn't come up with a very solid answer, I'm afraid. (And yes, I cribbed the question from the original poster on the aforementioned thread). Gordon Ok, after fiddling with this for some time, I withdraw the solution with date('U') and suggest to use this one instead: function isValidTimeStamp($timestamp) { return ((string) (int) $timestamp === $timestamp) && ($timestamp <= PHP_INT_MAX) && ($timestamp >= ~PHP_INT_MAX); } This check will only