/// <summary>
/// 将日期转换为特定时区
/// </summary>
/// <param name="date">date to convert</param>
/// <param name="currentTimeZoneName">current date timezone name</param>
/// <param name="destinationTimeZoneName">destination date timezone name</param>
/// <returns>date on especific timezone</returns>
public static DateTime ToTimezoneDate(this DateTime date, string currentTimeZoneName, string destinationTimeZoneName)
{
var currentTimezone = BaseDateTimeExtensions.GetTimezoneInfo(currentTimeZoneName);
var destinationTimezone = BaseDateTimeExtensions.GetTimezoneInfo(destinationTimeZoneName);
return(date.ToTimezoneDate(currentTimezone, destinationTimezone));
}
/// <summary>
/// 将unix时间戳转换为日期
/// </summary>
/// <param name="unixTimestap">unix to convert</param>
/// <returns>datetime</returns>
public static DateTime FromUnixTimestamp(this long unixTimestap)
{
try
{
return((new DateTime(1970, 1, 1, 0, 0, 0, 0, DateTimeKind.Utc)).AddSeconds(unixTimestap.TryParseDouble(0)));
}
catch (Exception e)
{
Debug.WriteLine(e);
return(BaseDateTimeExtensions.GetCurrentDateTime());
}
}
/// <summary>
/// <para>将字符串日期转换为datetime</para>
/// <para>Return BaseDateTimeExtensions.GetCurrentDateTime() on error</para>
/// </summary>
/// <param name="strValue">string to convert</param>
/// <returns>datetime</returns>
public static DateTime TryParseDate(this string strValue)
{
return(strValue.TryParseDate(BaseDateTimeExtensions.GetCurrentDateTime(),
BaseDateTimeExtensions.GetCurrentCulture(),
BaseDateTimeExtensions.GetDefaultToDateDateTimeStyles()));
}
/// <summary>
/// <para>将字符串日期转换为datetime</para>
/// <para>返回基本DateTimeExtensions.GetCurrentDateTime（）错误</para>
/// </summary>
/// <param name="strValue">string to convert</param>
/// <param name="culture">date culture</param>
/// <param name="dateTimeStyle">datetime style</param>
/// <returns>datetime</returns>
public static DateTime TryParseDate(this string strValue, CultureInfo culture, DateTimeStyles dateTimeStyle)
{
return(strValue.TryParseDate(BaseDateTimeExtensions.GetCurrentDateTime(), culture, dateTimeStyle));
}
/// <summary>
/// <para>获取日期的星期编号</para>
/// <para>Use BaseDateTimeExtensions.GetDefaultCalendarRule() as default calendar rule</para>
/// <para>Use BaseDateTimeExtensions.GetDefaultFirstWeekDay() as first week day</para>
/// </summary>
/// <param name="date">Date to get week number</param>
/// <returns>Week number or -1 when error</returns>
public static int GetWeekNumber(this DateTime date)
{
return(date.GetWeekNumber(BaseDateTimeExtensions.GetDefaultCalendarRule(),
BaseDateTimeExtensions.GetDefaultFirstWeekDay()));
}
/// <summary>
/// <para>获取日期的星期编号</para>
/// <para>Use BaseDateTimeExtensions.GetDefaultCalendarRule() as default calendar rule</para>
/// </summary>
/// <param name="date">Date to get week number</param>
/// <param name="firstWeekDay">First day of week</param>
/// <returns>Week number or -1 when error</returns>
public static int GetWeekNumber(this DateTime date, DayOfWeek firstWeekDay)
{
return(date.GetWeekNumber(BaseDateTimeExtensions.GetDefaultCalendarRule(), firstWeekDay));
}
/// <summary>
/// <para>获取日期的星期编号</para>
/// <para>Use BaseDateTimeExtensions.GetDefaultFirstWeekDay() as first week day</para>
/// </summary>
/// <param name="date">Date to get week number</param>
/// <param name="weekRule">Rule to calculate week number</param>
/// <returns>Week number or -1 when error</returns>
public static int GetWeekNumber(this DateTime date, CalendarWeekRule weekRule)
{
return(date.GetWeekNumber(weekRule, BaseDateTimeExtensions.GetDefaultFirstWeekDay()));
}
/// <summary>
/// 将日期转换为特定时区
/// </summary>
/// <param name="date">date to convert</param>
/// <param name="destinationTimeZoneName">destination date timezone name</param>
/// <returns>date on especific timezone</returns>
public static DateTime ToTimezoneDate(this DateTime date, string destinationTimeZoneName)
{
var destinationTimezone = BaseDateTimeExtensions.GetTimezoneInfo(destinationTimeZoneName);
return(date.ToTimezoneDate(BaseDateTimeExtensions.GetDefaultTimezoneInfo(), destinationTimezone));
}
/// <summary>
/// 将日期转换为特定时区
/// </summary>
/// <param name="date">date to convert</param>
/// <param name="destinationTimeZoneInfo">destination date timezone info</param>
/// <returns>date on especific timezone</returns>
public static DateTime ToTimezoneDate(this DateTime date, TimeZoneInfo destinationTimeZoneInfo)
{
return(date.ToTimezoneDate(BaseDateTimeExtensions.GetDefaultTimezoneInfo(), destinationTimeZoneInfo));
}
/// <summary>
///将日期转换为unix时间戳
/// </summary>
/// <param name="date">date to convert</param>
/// <returns>unix timestamp</returns>
public static long ToUnixTimestamp(this DateTime date)
{
var timezoneInfo = BaseDateTimeExtensions.GetDefaultTimezoneInfo();
return(date.ToUnixTimestamp(timezoneInfo));
}
/// <summary>
///将日期转换为unix时间戳
/// </summary>
/// <param name="date">date to convert</param>
/// <param name="timezoneName">current date timezone name</param>
/// <returns>unix timestamp</returns>
public static long ToUnixTimestamp(this DateTime date, string timezoneName)
{
var timezoneInfo = BaseDateTimeExtensions.GetTimezoneInfo(timezoneName);
return(date.ToUnixTimestamp(timezoneInfo));
}
/// <summary>
/// 将日期转换为Utc日期
/// </summary>
/// <param name="date">date to convert</param>
/// <returns>utc date</returns>
public static DateTime ToUtc(this DateTime date)
{
var timezoneInfo = BaseDateTimeExtensions.GetDefaultTimezoneInfo();
return(date.ToUtc(timezoneInfo));
}
/// <summary>
/// 将日期转换为Utc日期
/// </summary>
/// <param name="date">date to convert</param>
/// <param name="timezoneName">current date timezone name</param>
/// <returns>utc date</returns>
public static DateTime ToUtc(this DateTime date, string timezoneName)
{
var timezoneInfo = BaseDateTimeExtensions.GetTimezoneInfo(timezoneName);
return(date.ToUtc(timezoneInfo));
}
/// <summary>
/// 测试字符串值是否是有效的日期值
/// </summary>
/// <param name="strValue">string value</param>
/// <returns>true/false</returns>
public static bool IsValidDate(this string strValue)
{
return(strValue.IsValidDate(
BaseDateTimeExtensions.GetCurrentCulture(),
BaseDateTimeExtensions.GetDefaultToDateDateTimeStyles()));
}
/// <summary>
/// 将可空日期转换为datetime
/// </summary>
/// <param name="nullableDate">nullable date to convert</param>
/// <returns>datetime</returns>
public static DateTime TryParseDate(this DateTime?nullableDate)
{
return(nullableDate.TryParseDate(BaseDateTimeExtensions.GetCurrentDateTime()));
}
