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• Calendar
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  • DateTime — DateTime ��
  • DateTimeImmutable — The DateTimeImmutable class
  • DateTimeInterface — The DateTimeInterface interface
  • DateTimeZone — The DateTimeZone class
  • DateInterval — DateInterval ��
  • DatePeriod — DatePeriod ��
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  • Supported Date and Time Formats
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• HRTime — High resolution timing
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  • HRTime\PerformanceCounter — The HRTime\PerformanceCounter class
  • HRTime\StopWatch — The HRTime\StopWatch class
  • HRTime\Unit — The HRTime\Unit class