Compare non-standard time format to now() in linux

This project was successfully completed by vladimirumnov for $15 USD in a day.

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$10 - $30 USD
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Project Description

I run debian on a raspberry pi and want to see if a given timestamp is older than X hours. This would be trivial if the timestamp was in a standard format, but unfortunately that is not the case.

The timestamp has the following format:

November 5, 2016 at 12:50AM


November 14, 2016 at 04:35PM

I'm looking for a tool that can take in a timestamp in a given input-format, and convert to another time format. I can use any tools as long as they are available on debian/raspberry pi.

What I'm looking for is something like this:


timeout="1440" # 24 hours = 1440 minutes

now=$(date +"%Y%m%d%H%M") # = 201611271814

timestamp_raw="November 5, 2016 at 12:50AM"

timestamp=$(convert "$timestamp_raw" --inputformat +"%B %e, %Y at %I:%M%p" --outputformat +"%Y%m%d%H%M") # this command is fictitious but should produce something like 201611050050

comparedate=$(expr $now - $timeout) # = now() - 24 hours

if [ $timestamp -ge $comparedate ];


echo 'yes';


Can you point me in the right direction?

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