Timestamps in Python: datetime, time.time(), and Arrow Compared
Handle timestamps in Python using datetime, time.time(), and the arrow library. Convert, format, and compare timestamps across timezones.
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Tags: developer-tools, timestamps, python
Timestamps in Python: datetime, time.time(), and Arrow Compared Python has multiple ways to get and manipulate timestamps, and they are not all equivalent. , , , and all behave differently in ways that cause real bugs. This guide covers what each one does, which ones to use, and when a library like Arrow is worth reaching for. datetime.now() vs datetime.utcnow() vs datetime.now(timezone.utc) This is where Python's date handling gets confusing. datetime.now() — Naive Local Time This returns a naive datetime — one with no timezone information. The values reflect your local system time, but there is nothing in the object to say so. If you store this, compare it, or serialize it, you lose all timezone context. datetime.utcnow() — DEPRECATED in Python 3.12 returns a naive datetime whose values…
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