Class DateTimeExtensions

Extension methods for .

Inheritance
System.Object
DateTimeExtensions
Namespace: X10D.Time
Assembly: X10D.dll
Syntax
public static class DateTimeExtensions : object

Methods

| Improve this Doc View Source

Age(DateTime)

Returns the rounded-down integer number of years since a given date as of today.

Declaration
public static int Age(this DateTime value)
Parameters
Type Name Description
DateTime value
Returns
Type Description
System.Int32

The rounded-down integer number of years since value as of today.
| Improve this Doc View Source

Age(DateTime, DateTime)

Returns the rounded-down integer number of years since a given date as of another specified date.

Declaration
public static int Age(this DateTime value, DateTime referenceDate)
Parameters
Type Name Description
DateTime value
DateTime referenceDate
Returns
Type Description
System.Int32

The rounded-down integer number of years since value as of the date specified by referenceDate.
| Improve this Doc View Source

First(DateTime, DayOfWeek)

Gets a date representing the first occurence of a specified day of the week in the current month.

Declaration
public static DateTime First(this DateTime value, DayOfWeek dayOfWeek)
Parameters
Type Name Description
DateTime value
DayOfWeek dayOfWeek

The day of the week.
Returns
Type Description
DateTime

A representing the first occurence of dayOfWeek.
| Improve this Doc View Source

FirstDayOfMonth(DateTime)

Gets a date representing the first day of the current month.

Declaration
public static DateTime FirstDayOfMonth(this DateTime value)
Parameters
Type Name Description
DateTime value
Returns
Type Description
DateTime

A representing the first day of the current month.
| Improve this Doc View Source

GetIso8601WeekOfYear(DateTime)

Gets the ISO-8601 week number of the year for the current date.

Declaration
public static int GetIso8601WeekOfYear(this DateTime value)
Parameters
Type Name Description
DateTime value

The date whose week number to return.
Returns
Type Description
System.Int32

The ISO-8601 week number of the year.
Remarks

This implementation is directly inspired from a blog post . about this subject.

| Improve this Doc View Source

IsLeapYear(DateTime)

Returns a value indicating whether the year represented by the current is a leap year.

Declaration
public static bool IsLeapYear(this DateTime value)
Parameters
Type Name Description
DateTime value

The date whose year to check.
Returns
Type Description
System.Boolean

true if the year represented by value is a leap year; otherwise, false.
| Improve this Doc View Source

Last(DateTime, DayOfWeek)

Gets a date representing the final occurence of a specified day of the week in the current month.

Declaration
public static DateTime Last(this DateTime value, DayOfWeek dayOfWeek)
Parameters
Type Name Description
DateTime value
DayOfWeek dayOfWeek

The day of the week.
Returns
Type Description
DateTime

A representing the final occurence of dayOfWeek.
| Improve this Doc View Source

LastDayOfMonth(DateTime)

Gets a date representing the last day of the current month.

Declaration
public static DateTime LastDayOfMonth(this DateTime value)
Parameters
Type Name Description
DateTime value
Returns
Type Description
DateTime

A representing the last day of the current month.
| Improve this Doc View Source

Next(DateTime, DayOfWeek)

Gets a date representing the next occurence of a specified day of the week in the current month.

Declaration
public static DateTime Next(this DateTime value, DayOfWeek dayOfWeek)
Parameters
Type Name Description
DateTime value
DayOfWeek dayOfWeek

The day of the week.
Returns
Type Description
DateTime

A representing the next occurence of dayOfWeek.
| Improve this Doc View Source

ToUnixTimeMilliseconds(DateTime)

Returns the number of milliseconds that have elapsed since 1970-01-01T00:00:00.000Z.

Declaration
public static long ToUnixTimeMilliseconds(this DateTime value)
Parameters
Type Name Description
DateTime value

The current date.
Returns
Type Description
System.Int64

The number of milliseconds that have elapsed since 1970-01-01T00:00:00.000Z.
| Improve this Doc View Source

ToUnixTimeSeconds(DateTime)

Returns the number of seconds that have elapsed since 1970-01-01T00:00:00.000Z.

Declaration
public static long ToUnixTimeSeconds(this DateTime value)
Parameters
Type Name Description
DateTime value

The current date.
Returns
Type Description
System.Int64

The number of seconds that have elapsed since 1970-01-01T00:00:00.000Z.