method Temporal.PlainTime.prototype.since
#PlainTime.prototype.since(other: ,options?: DifferenceOptions<"hour"
| "minute"
| "second"
| "millisecond"
| "microsecond"
| "nanosecond">,): Temporal.DurationParameters #
#other: optional
#options: DifferenceOptions<"hour"
| "minute"
| "second"
| "millisecond"
| "microsecond"
| "nanosecond">