CODEWITHSUNDEEP
powershell
Marius
Marius

Reputation: 9664

How do you create a timespan from milliseconds in powershell?

New-Timespan takes no "MilliSeconds" parameter, how do you create a TimeSpan from milliseconds?

Upvotes: 8

Views: 11220

Answers (4)

js2010
js2010

Reputation: 27423

10,000 ticks (integer, not float or string) is 1 millisecond:

[timespan]10000


Days              : 0
Hours             : 0
Minutes           : 0
Seconds           : 0
Milliseconds      : 1
Ticks             : 10000
TotalDays         : 1.15740740740741E-08
TotalHours        : 2.77777777777778E-07
TotalMinutes      : 1.66666666666667E-05
TotalSeconds      : 0.001
TotalMilliseconds : 1

Upvotes: 0

Lance U. Matthews
Lance U. Matthews

Reputation: 16606

As of PowerShell v7.3 there is a -Milliseconds parameter of New-TimeSpan...

PS> New-TimeSpan -Milliseconds 10

Days              : 0
Hours             : 0
Minutes           : 0
Seconds           : 0
Milliseconds      : 10
Ticks             : 100000
TotalDays         : 1.15740740740741E-07
TotalHours        : 2.77777777777778E-06
TotalMinutes      : 0.000166666666666667
TotalSeconds      : 0.01
TotalMilliseconds : 10

Otherwise, use the FromMilliseconds static method of the TimeSpan structure...

PS> [TimeSpan]::FromMilliseconds(10)


Days              : 0
Hours             : 0
Minutes           : 0
Seconds           : 0
Milliseconds      : 10
Ticks             : 100000
TotalDays         : 1.15740740740741E-07
TotalHours        : 2.77777777777778E-06
TotalMinutes      : 0.000166666666666667
TotalSeconds      : 0.01
TotalMilliseconds : 10

A TimeSpan ultimately represents its duration as a number of Ticks, so if you prefer to think of it that way you can multiply the number of milliseconds by the TicksPerMillisecond constant and pass that to the constructor that accepts the number of ticks (there is no FromTicks() method)...

PS> New-Object -TypeName 'TimeSpan' -ArgumentList (10 * [TimeSpan]::TicksPerMillisecond)

Days              : 0
Hours             : 0
Minutes           : 0
Seconds           : 0
Milliseconds      : 10
Ticks             : 100000
TotalDays         : 1.15740740740741E-07
TotalHours        : 2.77777777777778E-06
TotalMinutes      : 0.000166666666666667
TotalSeconds      : 0.01
TotalMilliseconds : 10


PS> [TimeSpan]::new(10 * [TimeSpan]::TicksPerMillisecond)

Days              : 0
Hours             : 0
Minutes           : 0
Seconds           : 0
Milliseconds      : 10
Ticks             : 100000
TotalDays         : 1.15740740740741E-07
TotalHours        : 2.77777777777778E-06
TotalMinutes      : 0.000166666666666667
TotalSeconds      : 0.01
TotalMilliseconds : 10

Upvotes: 16

G-e-V-e
G-e-V-e

Reputation: 29

Positive: [timespan]'0:0:0.001' or [timespan]'00:00:00:00.001'

Negative: [timespan]'-0:0:0.001' or [timespan]'-00:00:00:00.001'

Specifying 4 or 5 [int32] numbers get interpreted as (optionally days,) hours, minutes, seconds and milliseconds.

For a more complete answer see https://devblogs.microsoft.com/scripting/weekend-scripter-understanding-timespan-objects/ and scroll down to TimeSpan constructors.

Each time unit specified must stay within its usual limits (0-23 for hours, 0-59 for minutes and seconds, 0-999 for milliseconds). The days range (if specified) is 0-10675199.

The highest possible [timespan] value appears to be [timespan]'10675199:2:48:5.477' (verified on PowerShell 5.1 and pwsh 7.1.1).

Upvotes: 2

Rachan Terrell
Rachan Terrell

Reputation: 1

$Start_DateTime = Get-Date -format HH:mm:ss.fff
...... other commnads
$Finish_DateTime = Get-Date -format HH:mm:ss.fff
$TimeDiff = New-TimeSpan $Start_DateTime $Finish_DateTime 
IF ($TimeDiff.Seconds -lt 0) 
{ $Hrs = ($TimeDiff.Hours) + 23
  $Mins = ($TimeDiff.Minutes) + 59
  $Secs = ($TimeDiff.Seconds) + 59 
  $Milliseconds = ($TimeDiff.Milliseconds) + 59 
}
ELSE 
{ $Hrs = $TimeDiff.Hours
  $Mins = $TimeDiff.Minutes
  $Secs = $TimeDiff.Seconds 
  $Milliseconds = $TimeDiff.Milliseconds
}

Upvotes: -1

Related Questions