public virtual DateTimeImmutable sub(DateInterval interval) => new DateTimeImmutable(_ctx, Time.Subtract(interval.AsTimeSpan()), TimeZone);
public virtual DateTimeImmutable add(DateInterval interval) => new DateTimeImmutable(_ctx, Time.Add(interval.AsTimeSpan()), TimeZone);
/// <summary>
/// Subtracts an amount of days, months, years, hours, minutes and seconds from a DateTime object.
/// </summary>
//[return: CastToFalse]
public virtual DateTime sub(DateInterval interval)
{
Time = Time.Subtract(interval.AsTimeSpan());
return(this);
}
/// <summary>
/// Adds an amount of days, months, years, hours, minutes and seconds to a DateTime object.
/// </summary>
/// <returns>Returns the <see cref="DateTime"/> object for method chaining or <c>FALSE</c> on failure.</returns>
//[return: CastToFalse]
public virtual DateTime add(DateInterval interval)
{
Time = Time.Add(interval.AsTimeSpan());
return(this);
}
public DatePeriod(DateTimeInterface start, DateInterval interval, DateTimeInterface end, int options = 0)
{
__construct(start, interval, end, options);
}
public DatePeriod(DateTimeInterface start, DateInterval interval, int recurrences, int options = 0)
{
__construct(start, interval, recurrences, options);
}