public IEnumerable <DateTime> GetNextInstants(DateTime lastInstant)
{
if (lastInstant.Kind != DateTimeKind.Utc)
{
throw new ArgumentException("Only DateTime values in UTC should be passed.", nameof(lastInstant));
}
return(_schedule
.GetNextOccurrences(
TimeZoneInfo.ConvertTime(lastInstant, TimeZoneInfo.Utc, _timeZone),
TimeZoneInfo.ConvertTime(NowInstant.AddSeconds(1), TimeZoneInfo.Utc, _timeZone))
.Where(x => !_timeZone.IsInvalidTime(x))
.Select(x => TimeZoneInfo.ConvertTime(x, _timeZone, TimeZoneInfo.Utc))
.ToList());
}
public IEnumerable <DateTime> GetNextInstants(DateTime?lastInstant)
{
if (lastInstant.HasValue && lastInstant.Value.Kind != DateTimeKind.Utc)
{
throw new ArgumentException("Only DateTime values in UTC should be passed.", "lastInstant");
}
var baseTime = lastInstant ?? NowInstant.AddSeconds(-1);
var endTime = NowInstant.AddSeconds(1);
return(_schedule
.GetNextOccurrences(
TimeZoneInfo.ConvertTimeFromUtc(baseTime, _timeZone),
TimeZoneInfo.ConvertTimeFromUtc(endTime, _timeZone))
.Select(x => TimeZoneInfo.ConvertTimeToUtc(x, _timeZone))
.ToList());
}