private static DateTimeOffset AddByDate(DateTimeOffset dateTimeOffset, Func <DateTime, DateTime> operation, TimeZoneInfo timeZone, TimeZoneOffsetResolver resolver)
{
var dto = TimeZoneInfo.ConvertTime(dateTimeOffset, timeZone);
var dt = operation.Invoke(dto.DateTime);
return(resolver.Invoke(dt, timeZone));
}
public static DateTimeOffset Add(this DateTime dateTime, TimeSpan timeSpan, TimeZoneInfo timeZone, TimeZoneOffsetResolver resolver)
{
var dto = resolver.Invoke(dateTime, timeZone);
var result = dto.Add(timeSpan);
return(TimeZoneInfo.ConvertTime(result, timeZone));
}
public static DateTimeOffset Add(this DateTime dateTime, TimeSpan timeSpan, TimeZoneInfo timeZone, TimeZoneOffsetResolver resolver)
{
var utc = dateTime.Kind == DateTimeKind.Unspecified
? resolver.Invoke(dateTime, timeZone).UtcDateTime
: dateTime.ToUniversalTime();
var dt = utc.Add(timeSpan);
return TimeZoneInfo.ConvertTime(dt, timeZone);
}
public static DateTimeOffset Add(this DateTime dateTime, TimeSpan timeSpan, TimeZoneInfo timeZone, TimeZoneOffsetResolver resolver)
{
var utc = dateTime.Kind == DateTimeKind.Unspecified
? resolver.Invoke(dateTime, timeZone).UtcDateTime
: dateTime.ToUniversalTime();
var dt = utc.Add(timeSpan);
return(TimeZoneInfo.ConvertTime(dt, timeZone));
}
private static DateTimeOffset AddByDate(DateTime dateTime, Func <DateTime, DateTime> operation, TimeZoneInfo timeZone, TimeZoneOffsetResolver resolver)
{
if (dateTime.Kind != DateTimeKind.Unspecified)
{
dateTime = TimeZoneInfo.ConvertTime(dateTime, timeZone);
}
var result = operation.Invoke(dateTime);
return(resolver.Invoke(result, timeZone));
}
private static DateTimeOffset AddByDate(DateTimeOffset dateTimeOffset, Func<DateTime, DateTime> operation, TimeZoneInfo timeZone, TimeZoneOffsetResolver resolver)
{
var dto = TimeZoneInfo.ConvertTime(dateTimeOffset, timeZone);
var dt = operation.Invoke(dto.DateTime);
return resolver.Invoke(dt, timeZone);
}
private static DateTimeOffset AddByDate(DateTime dateTime, Func<DateTime, DateTime> operation, TimeZoneInfo timeZone, TimeZoneOffsetResolver resolver)
{
if (dateTime.Kind != DateTimeKind.Unspecified)
{
dateTime = TimeZoneInfo.ConvertTime(dateTime, timeZone);
}
var dt = operation.Invoke(dateTime);
return resolver.Invoke(dt, timeZone);
}
public static DateTimeOffset Add(this DateTime dateTime, TimeSpan timeSpan, TimeZoneInfo timeZone, TimeZoneOffsetResolver resolver)
{
var dto = resolver.Invoke(dateTime, timeZone);
var result = dto.Add(timeSpan);
return TimeZoneInfo.ConvertTime(result, timeZone);
}