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  1. using System;
  2. using static System.Console;
  3.  
  4. WriteLine(DateTime.Now.StartOfWeek(DayOfWeek.Monday));
  5. WriteLine(DateTime.Now.StartOfWeek());
  6.  
  7. public static class DateTimeExtensions {
  8.     public static DateTime StartOfWeek(this DateTime dt, DayOfWeek startOfWeek = DayOfWeek.Sunday) => dt.AddDays(-(7 + (dt.DayOfWeek - startOfWeek)) % 7).Date;
  9. }
  10.  
  11. //https://pt.stackoverflow.com/q/580778/101
Success #stdin #stdout 0.06s 28368KB
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stdin 
Standard input is empty
stdout 
4/3/2023 12:00:00 AM
4/2/2023 12:00:00 AM
https://ideone.com/qyKwCI
language:
C# (NET 6.0)
created:
2 years ago
visibility:
secret

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