/// <summary>
/// Subtracts the given time zone offset from this local instant, to give an <see cref="Instant" />.
/// </summary>
/// <remarks>
/// This would normally be implemented as an operator, but as the corresponding "plus" operation
/// on Instant cannot be written (as Instant is a public class and LocalInstant is an internal class)
/// it makes sense to keep them both as methods for consistency.
/// </remarks>
/// <param name="offset">The offset between UTC and a time zone for this local instant</param>
/// <returns>A new <see cref="Instant"/> representing the difference of the given values.</returns>
public Instant Minus(Offset offset)
{
return(new Instant(Ticks - offset.Ticks));
}
/// <summary>
/// Constructs a new offset date/time with the given local date and time, and the given offset from UTC.
/// </summary>
/// <param name="localDateTime">Local date and time to represent</param>
/// <param name="offset">Offset from UTC</param>
public OffsetDateTime(LocalDateTime localDateTime, Offset offset)
: this(localDateTime.Date, new OffsetTime(localDateTime.NanosecondOfDay, offset.Seconds))
{
}
/// <summary>
/// Initializes a new instance of the <see cref="ZonedDateTime"/> struct in the specified time zone
/// from a given local time and offset. The offset is validated to be correct as part of initialization.
/// In most cases a local time can only map to a single instant anyway, but the offset is included here for cases
/// where the local time is ambiguous, usually due to daylight saving transitions.
/// </summary>
/// <param name="localDateTime">The local date and time.</param>
/// <param name="zone">The time zone.</param>
/// <param name="offset">The offset between UTC and local time at the desired instant.</param>
/// <exception cref="ArgumentException"><paramref name="offset"/> is not a valid offset at the given
/// local date and time.</exception>
public ZonedDateTime(LocalDateTime localDateTime, [NotNull] DateTimeZone zone, Offset offset)
{
this.zone = Preconditions.CheckNotNull(zone, nameof(zone));
Instant candidateInstant = localDateTime.ToLocalInstant().Minus(offset);
Offset correctOffset = zone.GetUtcOffset(candidateInstant);
// Not using Preconditions, to avoid building the string unnecessarily.
if (correctOffset != offset)
{
throw new ArgumentException("Offset " + offset + " is invalid for local date and time " + localDateTime
+ " in time zone " + zone.Id, nameof(offset));
}
offsetDateTime = new OffsetDateTime(localDateTime, offset);
}
public void Deconstruct(out LocalDateTime localDateTime, [NotNull] out DateTimeZone dateTimeZone, out Offset offset)
{
localDateTime = LocalDateTime;
dateTimeZone = Zone;
offset = Offset;
}
public static int DaysOff(string date, string time, string rpfTimeZone, string ingestTimeZone)
{
int tensPlace = 0;
DateTime localDt = DateTime.Parse(string.Format("{0} {1}", date, time));
LocalTime localTime = new LocalTime(localDt.Hour, localDt.Minute, localDt.Second);
int hour = localDt.Hour;
LocalDateTime localDateTime = LocalDateTime.FromDateTime(localDt);
DateTimeZoneProviders dtzp = new DateTimeZoneProviders();
DateTimeZone rpfZone = dtzp.Tzdb[rpfTimeZone];
DateTimeZone ingestZone = dtzp.Tzdb[ingestTimeZone];
ZonedDateTime zonedDateTime = localDateTime.InZoneLeniently(rpfZone);
Offset rpfOffset = rpfZone.GetUtcOffset(zonedDateTime.ToInstant());
Offset ingestOffset = ingestZone.GetUtcOffset(zonedDateTime.ToInstant());
ZonedDateTime zeroTime = new LocalDateTime(LocalDate.FromDateTime(localDt), new LocalTime(0, 15)).InZoneLeniently(ingestZone);
ZonedDateTime elevenTime = new LocalDateTime(LocalDate.FromDateTime(localDt), new LocalTime(11, 15)).InZoneLeniently(ingestZone);
ZonedDateTime zeroTimeRpf = new LocalDateTime(LocalDate.FromDateTime(localDt), new LocalTime(0, 15)).InZoneLeniently(rpfZone);
ZonedDateTime elevenTimeRpf = new LocalDateTime(LocalDate.FromDateTime(localDt), new LocalTime(11, 15)).InZoneLeniently(rpfZone);
Offset zeroOffset = zeroTimeRpf.Offset - zeroTime.Offset;
Offset elevenOffset = elevenTimeRpf.Offset - elevenTime.Offset;
if (Math.Abs(zeroOffset.Milliseconds) < Math.Abs(elevenOffset.Milliseconds))
{
var zeroClock = new LocalTime(0, 0);
var lowTime = zeroClock.PlusMilliseconds(-zeroOffset.Milliseconds);
var highTime = zeroClock.PlusMilliseconds(-elevenOffset.Milliseconds);
if (localTime >= lowTime && localTime < highTime)
{
tensPlace = 10;
}
}
/*
*
* at0 get offsets and subtract rpfoffat0 - ingestOffsetat0 (-4)
* at11 get offsets and subtract rpfoffat11 - ingestoffat11 (-5)
*
* if these are different
* range is (0 in time) - at0 or (0 - -4) = 4
* to (0 in time) -at11 or (0 - -5) = 5
*
*
*/
var offsetDelta = rpfOffset - ingestOffset;
var hrsToAdd = offsetDelta.Milliseconds / NodaConstants.MillisecondsPerHour;
var newHour = (hour + hrsToAdd);
if (newHour < 0)
{
return(-1 - tensPlace);
}
else if (newHour > 24)
{
return(1 + tensPlace);
}
else
{
return(0 + tensPlace);
}
}
public void Deconstruct(out LocalDate localDate, out LocalTime localTime, out Offset offset)
{
localDate = LocalDateTime.Date;
localTime = LocalDateTime.TimeOfDay;
offset = Offset;
}
public void Deconstruct(out LocalDateTime localDateTime, out Offset offset)
{
localDateTime = LocalDateTime;
offset = Offset;
}