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Asked: 2026-06-09T12:29:00+00:00

Alright I was looking at this in python but I just like ruby better.

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Alright I was looking at this in python but I just like ruby better. What I’m trying to do is get a date and time from this number – 12988822998637849 – which is the number of microseconds since January 1, 1601 UTC. This is how Chrome stores it’s timestamps and i’ve seen a number of methods to do this in python, but I am just more comfortable with ruby and I have no idea on how to even start going about doing this. (My Google-Fu didn’t help me this time)
Note this example number is from a few days ago. I’ll take any help I can get. Thank you!

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  1. Editorial Team

    look at Time.at.

    A Windows file time is “a 64-bit value that represents the number of 100-nanosecond intervals that have elapsed since 12:00 midnight, January 1, 1601 A.D. (C.E.) Coordinated Universal Time (UTC).” Ref.

    In contrast, Ruby stores times like Unix: “Time is stored internally as the number of seconds and microseconds since the epoch, January 1, 1970 00:00 UTC” Ref.

    # This return a Time
Time.at(12988822998637849/1000000-11644473600) # Epoch Diff is 11644473600
# => 2012-08-07 11:23:18 -0300 

# This returns a String
Time.at(12988822998637849/1000000-11644473600).strftime("%Y-%m-%d %H:%M.%S")
# => "2012-08-07 11:23.18"
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