javascript Date and python datetime object

Question

In javascript console ,I tried this

d=new Date()
t=d.getTime()

When I printed t,it gave

>>1334855220112

As per documentation ,it must be the number of milliseconds since 1970/01/01

In python ,I created a datetime.datetime object as

nowdtime=datetime.datetime.today()
print str(int(nowdtime.strftime("%s"))*1000)

This gave the result:

'1334855221000'

This value looks very close to the result I got from javascript console.

the value of nowdtime is

datetime.datetime(2012, 4, 19, 22, 37, 1, 866262)

My doubt is why nowdtime.strftime("%s") returns number of seconds since epoch?

If I give nowdtime.strftime("%H") ,it will only return 22 which is the hour according to 24 hr clock.

Hamish · Accepted Answer · 2012-04-19 17:43:28Z

2

The %s must be some sort of platform specific (ie, not documented at http://docs.python.org/library/time.html#time.strftime) directive:

Additional directives may be supported on certain platforms, but only the ones listed here have a meaning standardized by ANSI C.

Ie, Win7 Python 2.6.6 iPython console:

import datetime
d = datetime.datetime(2012, 4, 19, 22, 37, 1, 866262)
d.strftime("%s") # gives: ''

I'm not sure if this answers your question, because I'm not sure what your question is.

answered Apr 19, 2012 at 17:43

Hamish

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2 Comments

damon Over a year ago

thanks for telling me about the platform specific issue..I was using linux..so didn't know whether it worked on windows. Anyway ,time.mktime(datetime.datetime.now().timetuple()) * 1000 returns the expected milliseconds since epoch.

Hamish Over a year ago

Yeah, I get your result on Ubuntu.

ponnu · Accepted Answer · 2013-08-30 08:50:34Z

0

You can also just use the time method from time module time.time() to get a float that indicates the time in seconds since epoch.

answered Aug 30, 2013 at 8:50

ponnu

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