yeah, the problem is that there is no standard way.
Stripe APIs use epoch.
Twitter and Dropbox APIs use ISO 8601.
So just curious what about people's preferences.
I wouldn't be surprised if Stripe chose unix epochs because they interact with third party bank or credit card systems and that makes their lives easier or because they store payment events in a time series DB and their DB uses unix timestamps. Maybe after validating the payload, they ship it to some queue and that gets written as is to a DB.
Or maybe they just chose by tossing a coin :D
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