Working with date and time data in .NET

on YouTube ↗48m

" summary

Explains when to use Instant/Duration/Interval versus LocalDate/LocalTime/ZonedDateTime, why DateTimeKind and DateTimeOffset mislead, and why use Noda Time types for clear intent; demos include DateOnly/TimeOnly, mapping instants through time zones, and handling ambiguous or skipped local times during DST. Shows testing pattern: inject an IClock (or fake clock) to avoid time-dependent flakiness and cautions about calendar differences and database column semantics when persisting timestamps.

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" chapters (18)

1. 0:00Date/time challenges in .NET
2. 3:18Why date/time handling is complex
3. 8:24Approaching date/time work
4. 8:45Machine vs civil time
5. 10:28Problems with DateTime
6. 14:03Why Noda Time was created
7. 18:21Machine time types
8. 21:57When to use machine time types
9. 22:17Calendar systems complexities
10. 24:43Dates/times in different calendars
11. 25:48TimeOnly vs DateOnly in .NET 6
12. 27:10Combining dates and times
13. 27:31Time zones pitfalls
14. 31:29ZonedDateTime limitations
15. 33:15Periods and arithmetic challenges
16. 33:58Key tips for date/time handling
17. 36:25Testing with IClock
18. 38:14Summary and call to action

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