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Time is an illusion

Description

Time is an illusion, lunch time doubly so.

Have you ever wanted to know what goes on when you run datetime.datetime.utcnow().isoformat()?

How does your computer know what UTC is?

Why should you use UTC?

Where should we go for lunch?

This talk is about the use to date and time in computing.

Covering precision from years to nanoseconds, discontinuities from Julian to Gregorian, day light savings and down to leap seconds. From measuring time with sundials to cesium atomic clocks.

With practical tips on timezones, parsing, formatting, changing time for testing and packages to make your life easier.

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