[ Python 常見問題 ] Converting Epoch time into the datetime

Source From Here 
Question 
I am getting a response from the rest is an Epoch time format like: 

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1. start_time = 1234566  
2. end_time = 1234578  

I want to convert that epoch seconds to be transformed into below format (Check strftime): 

2012-09-12 21:00:00

How-To 
To convert your time value (float or int) to a formatted string, use: 

>>> time.strftime('%Y-%m-%d %H:%M:%S', time.localtime(1347517370)) // For my local TimeZone as UTC+8 
'2012-09-13 14:22:50' 

>>> time.strftime('%Y-%m-%d %H:%M:%S', time.gmtime(1347517370)) // The time with TimeZone as UTC+0 
'2012-09-13 06:22:50'

Reference: 
* time.localtime([secs]): 

Like gmtime() but converts to local time. If secs is not provided or None, the current time as returned by time() is used. The dst flag is set to 1 when DST applies to the given time.