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Convert Instagram response device time stamp to readable date time

I'm using Instagram-API-python to create an application. I'm getting a JSON response with below value.
'device_timestamp': 607873890651
I tried to convert this value to readable using python.
import time
readable = time.ctime(607873890651)
print(readable)
It gives following result and seems it is not correct.
Sun Oct 3 16:00:51 21232
I'm not much familiar with the Instagram-API-python. Please someone can help me to solve this problem.

The data is very likely to be incorrect.
Timestamp is a very standard way to store a date-time. Counting the seconds that passed since January 1st, 1970, also known as the UNIX Epoch.
I looked for "Instagram 'device_timestamp'" on Google and all the user-provided values made sense, but yours doesn't.
This is probably an error from the database, it happens.

Use the mentioned ctime conversion, but take the 'taken_at' field if available.

Don't use device_timestamp but use taken_at field. Then taken_at need multiply to 1000.
In Java it looks like this
Date data = new Date(taken_at * 1000);

How do I get the full timezone name from a Datetime without importing Time?

I'm trying to display my full time zone along with my current local time.
print "Your current time is {0} {1} ".format(datetime.datetime.now().time(), time.tzname[0])
And the result would look something like:
Your current time is 08:35:45.328000 Pacific Standard Time
The problem is I have to import the Time library (sorry if I call it wrong, I'm coming from C#) along with the Datetime library.
import datetime
import time
I've looked into the naive and aware states of time, but still can't seem to get the desired result.
Is there a way to get the full timezone name (i.e.: Pacific Standard Time) from Datetime without having to import Time?

The example for writing your own local timezone tzinfo class uses (scroll down one page from here) pulls the tzname from time.tzname, so Python doesn't have a better built-in solution to suggest.
You could copy that example LocalTimezone implementation, which would allow the use of the %Z format code for strftime on an aware datetime instance using the LocalTimezone, but that's the best you can do with the built-ins. On a naive datetime the tzname is the empty string, so you need an aware datetime for this to work.

How should I serialize a dateutil.tz.tzlocal object?

I want to capture a timestamp and the current timezone and serialize it into a file (in JSON or YAML, but that's not really my question) for later retrieval on a different computer.
The timestamp is easy, I'll just use time.time().
For getting the current timezone, I read another SO question and it seems appropriate to use dateutil.tz.tzlocal
to get the current timezone.
Now I just need to figure out how to serialize it. The name is easy, that's just a string, but the offset seems to be weird; I was expecting just a number:
import time
import datetime
import dateutil
now = datetime.datetime.utcfromtimestamp(time.time())
tzlocal = dateutil.tz.tzlocal()
print tzlocal.tzname(now)
print tzlocal.utcoffset(now)
but this prints
US Mountain Standard Time
-1 day, 17:00:00
and the result of utcoffset appears to be an object. How do I just get the number?

Oh, never mind, tzlocal.utcoffset(now) returns a datetime.timedelta and I can just call total_seconds():
import time
import datetime
import dateutil
import json
now = datetime.datetime.utcfromtimestamp(time.time())
tzlocal = dateutil.tz.tzlocal()
info_str = json.dumps(dict(name=tzlocal.tzname(now),
offset=tzlocal.utcoffset(now).total_seconds()))
print info_str
which prints (on my PC)
{"name": "US Mountain Standard Time", "offset": -25200.0}

I'm not sure what your application is but as a default I recommend serializing to ISO 8601 timestamps with a time zone offset. Even better, convert to UTC first... this makes things easier for humans who happen to browse the serialized data, because they don't have to do the date math in their head.
There may be performance reasons for sticking with numeric timestamps, but I'd want proof this was a bottleneck in my application before giving up the human-readable bonus of ISO timestamps.

Converting "2013-01-06T22:25:08.733" to "2013-01-06 22:25:08" in python

I have a big .csv file which holds machine log data. One of the fields is timestamp. It stores date and time as shown in the title and I would like to drop the milli seconds and convert it into the format also shown in title. Can anyone help me with that? Im new to Python and Ipython.
Much obliged.

For your special case, this should suffice:
t.replace('T', ' ')[:19]
But I would recommend, that you use the datetime module of the standard library instead, so your time conversion also could be internationalized.

You can use easy_date to make it easy:
import date_converter
new_date = date_converter.string_to_string("2013-01-06T22:25:08.733", "%Y-%m-%dT%H:%M:%S.%f", "%Y-%m-%d %H:%M:%S")

How to use search imaplib

I need to download only emails from the IMAP server which are older than a certain Linux timestamp. The Linux time stamp has to be to the second. This gets updated as per the server time.
Example :
datetime.now().strftime('%d-%b-%Y %H:%M:%s')
'21-Dec-2012 16:50:1356088844
Problem code:
result, data = imap_server.search(None, '(SINCE '+datetime.now().strftime('%d-%b-%Y')+')')
The search function only takes in 'SINCE + DATE'. It won't take a full date time argument. It only takes the date example '21-Dec-2012'
How can I solve this?