Extended date and time

[Adam Pletcher]

The "time" module in the standard library does epoch, and conversions.
 
Get current local time in seconds since epoch (1970):
 
>>> import time
>>> now_secs = time.time()
>>> print now_secs
1194790069.33
 
Convert to a struct_time object for conversions:
 
>>> now_struct = time.localtime(now_secs)
>>> print now_struct
(2007, 11, 11, 8, 7, 49, 6, 315, 0)
 
Make it a readable string:
 
>>> now_string = time.strftime('%a %m/%d/%Y, %I:%M:%S %p', now_struct)
>>> print now_string
'Sun 11/11/2007, 08:07:49 AM'
 
Convert string back into a struct_time object, then seconds again:
 
>>> now_struct2 = time.strptime(now_string, '%a %m/%d/%Y, %I:%M:%S %p')
>>> print now_struct2
(2007, 11, 11, 8, 7, 49, 6, 315, -1)
>>> now2 = time.mktime(now_struct2)
>>> print now2
1194790069.0
 
... etc.  If you're starting the other direction, change the format string passed to strptime to match the pattern of your existing strings.  The standard docs for the time module has all the details.
 
- Adam

 
________________________________

From: python-list-bounces+adam=volition-inc.com at python.org on behalf of Jeremy Sanders
Sent: Sat 11/10/2007 9:37 AM
To: python-list at python.org
Subject: Extended date and time



Hi - I need to add support to a program for dates and times. The built-in
Python library seems to be okay for many purposes, but what I would like
would be Unix epoch style times (seconds relative to some date), covering a
large period from the past to the future. What would be nice would be a
library which can take floating point seconds from an epoch.

Does anyone know of a library which can convert from human style dates and
times to a floating point epoch and back again? I expect I could fudge the
fractional seconds with the built-in library, but I can't see how to get
dates in the past.

Thanks, Jeremy.

--
Jeremy Sanders
http://www.jeremysanders.net/
--
http://mail.python.org/mailman/listinfo/python-list


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