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Python program to find difference between two timestamps
Suppose we have two times in this format "Day dd Mon yyyy hh:mm:ss +/-xxxx", where Day is three letter day whose first letter is in uppercase. Mon is the name of month in three letters and finally + or - xxxx represents the timezone for example +0530 indicates it is 5 hours 30 minutes more than GMT (other formats like dd, hh, mm, ss are self-explanatory). We have to find absolute difference between two timestamps in seconds.
To solve this using python we will use the datetime library. There is a function called strptime() this will convert string formatted date to datetime object. There are few format specifiers like below −
- %a indicates the day in three letter format
- %d indicates day in numeric format
- %b indicates month in three letter format
- %Y indicates year in yyyy format
- %H indicates hour in hh format
- %M indicates minutes in mm format
- %S indicates seconds in ss format
- %z indicates the timezone in +/- xxxx format
So, if the input is like t1 = "Thu 15 Jul 2021 15:10:17 +0530" t2 = "Thu 15 Jul 2021 20:25:29 +0720", then the output will be 12312
To solve this, we will follow these steps −
- t1 := change first time format from given string to above mentioned format
- t2 := change second time format from given string to above mentioned format
- return difference between t1 and t2 in seconds
Example
Let us see the following implementation to get better understanding −
from datetime import datetime def solve(t1, t2): t1 = datetime.strptime(t1, "%a %d %b %Y %H:%M:%S %z") t2 = datetime.strptime(t2, "%a %d %b %Y %H:%M:%S %z") return abs(int((t1-t2).total_seconds())) t1 = "Thu 15 Jul 2021 15:10:17 +0530" t2 = "Thu 15 Jul 2021 20:25:29 +0720" print(solve(t1, t2))
Input
"Thu 15 Jul 2021 15:10:17 +0530", "Thu 15 Jul 2021 20:25:29 +0720"
Output
12312
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