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Calculate the number of milliseconds elapsed since the start of the hour
Source position: dateutil.inc line 235
function MilliSecondOfTheHour(  | 
const AValue: TDateTime  | 
):LongWord;  | 
AValue  | 
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Moment in the hour  | 
Number of milliseconds elapsed since the start of the hour
MilliSecondOfTheHour returns the number of milliseconds that have passed since the start of the Hour (HH:00:00.000) till the moment indicated by AValue. This is a zero-based number, i.e. HH:00:00.000 will return 0.
For an example, see the MinuteOfTheHour function.
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Calculate the number of milliseconds elapsed since the start of the year.  | 
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Calculate number of milliseconds elapsed since the start of the month.  | 
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Calculate the number of milliseconds elapsed since the start of the week  | 
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Calculate the number of milliseconds elapsed since the start of the day  | 
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Calculate the number of milliseconds elapsed since the start of the minute  | 
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Calculate the number of milliseconds elapsed since the start of the second  | 
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Calculate the number of minutes elapsed since the start of the hour  | 
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Calculate the number of seconds elapsed since the start of the hour  |