New-TimeSpan
Creates a TimeSpan object.
语法
Date （默认值）
New-TimeSpan
[[-Start] <DateTime>]
[[-End] <DateTime>]
[<CommonParameters>]
Time
New-TimeSpan
[-Days <Int32>]
[-Hours <Int32>]
[-Minutes <Int32>]
[-Seconds <Int32>]
[<CommonParameters>]
说明
The New-TimeSpan cmdlet creates a TimeSpan object that represents a time interval.
You can use a TimeSpan object to add or subtract time from DateTime objects.
Without parameters, a New-TimeSpan command returns a TimeSpan object that represents a time
interval of zero.
示例
Example 1: Create a TimeSpan object for a specified duration
This command creates a TimeSpan object with a duration of 1 hour and 25 minutes and stores it in
a variable named $TimeSpan. It displays a representation of the TimeSpan object.
$TimeSpan = New-TimeSpan -Hours 1 -Minutes 25
$TimeSpan
Days : 0
Hours : 1
Minutes : 25
Seconds : 0
Milliseconds : 0
Ticks : 51000000000
TotalDays : 0.0590277777777778
TotalHours : 1.41666666666667
TotalMinutes : 85
TotalSeconds : 5100
TotalMilliseconds : 5100000
Example 2: Create a TimeSpan object for a time interval
This example creates a new TimeSpan object that represents the interval between the time that the command is run and January 1, 2010.
This command does not require the Start parameter, because the default value of the Start parameter is the current date and time.
New-TimeSpan -End (Get-Date -Year 2010 -Month 1 -Day 1)
Example 3: Get the date 90 days from the current date
$90days = New-TimeSpan -Days 90
(Get-Date) + $90days
These commands return the date that is 90 days after the current date.
Example 4: Discover the TimeSpan since a file was updated
This command tells you how long it has been since the about_remote help file was last updated. You can use this command format on any file, or any other object that has a LastWriteTime property.
This command works because the Start parameter of New-TimeSpan has an alias of
LastWriteTime. When you pipe an object that has a LastWriteTime property to New-TimeSpan,
PowerShell uses the value of the LastWriteTime property as the value of the Start parameter.
Get-ChildItem $PSHOME\en-us\about_remote.help.txt | New-TimeSpan
Days : 321
Hours : 21
Minutes : 59
Seconds : 22
Milliseconds : 312
Ticks : 278135623127728
TotalDays : 321.916230471907
TotalHours : 7725.98953132578
TotalMinutes : 463559.371879547
TotalSeconds : 27813562.3127728
TotalMilliseconds : 27813562312.7728
参数
-Days
Specifies the days in the time span. The default value is 0.
参数属性
| 类型: | Int32 |
| 默认值: | None |
| 支持通配符: | False |
| 不显示: | False |
参数集
Time
| Position: | Named |
| 必需: | False |
| 来自管道的值: | False |
| 来自管道的值（按属性名称）: | False |
| 来自剩余参数的值: | False |
-End
Specifies the end of a time span. The default value is the current date and time.
参数属性
| 类型: | DateTime |
| 默认值: | Current date and time |
| 支持通配符: | False |
| 不显示: | False |
参数集
Date
| Position: | 1 |
| 必需: | False |
| 来自管道的值: | False |
| 来自管道的值（按属性名称）: | True |
| 来自剩余参数的值: | False |
-Hours
Specifies the hours in the time span. The default value is zero.
参数属性
| 类型: | Int32 |
| 默认值: | None |
| 支持通配符: | False |
| 不显示: | False |
参数集
Time
| Position: | Named |
| 必需: | False |
| 来自管道的值: | False |
| 来自管道的值（按属性名称）: | False |
| 来自剩余参数的值: | False |
-Minutes
Specifies the minutes in the time span. The default value is 0.
参数属性
| 类型: | Int32 |
| 默认值: | None |
| 支持通配符: | False |
| 不显示: | False |
参数集
Time
| Position: | Named |
| 必需: | False |
| 来自管道的值: | False |
| 来自管道的值（按属性名称）: | False |
| 来自剩余参数的值: | False |
-Seconds
Specifies the length of the time span in seconds. The default value is 0.
参数属性
| 类型: | Int32 |
| 默认值: | None |
| 支持通配符: | False |
| 不显示: | False |
参数集
Time
| Position: | Named |
| 必需: | False |
| 来自管道的值: | False |
| 来自管道的值（按属性名称）: | False |
| 来自剩余参数的值: | False |
-Start
Specifies the start of a time span.
Enter a string that represents the date and time, such as "3/15/09" or a DateTime object, such
as one from a Get-Date command. The default value is the current date and time.
You can use Start or its alias, LastWriteTime.
The LastWriteTime alias lets you pipe objects that have a LastWriteTime property,
such as files in the file system [System.Io.FileIO], to the Start parameter of New-TimeSpan.
参数属性
| 类型: | DateTime |
| 默认值: | Current date and time |
| 支持通配符: | False |
| 不显示: | False |
| 别名: | LastWriteTime |
参数集
Date
| Position: | 0 |
| 必需: | False |
| 来自管道的值: | True |
| 来自管道的值（按属性名称）: | True |
| 来自剩余参数的值: | False |
CommonParameters
This cmdlet supports the common parameters: -Debug, -ErrorAction, -ErrorVariable, -InformationAction, -InformationVariable, -OutBuffer, -OutVariable, -PipelineVariable, -ProgressAction, -Verbose, -WarningAction, and -WarningVariable. For more information, see about_CommonParameters.
输入
DateTime
You can pipe a DateTime object that represents that start time to New-TimeSpan.
输出
TimeSpan
New-TimeSpan returns an object that represents the time span.