Gets the number of whole hours held in the instance. Note that the time 24:00:00 can be stored for roundtrip compatibility. Any calculations on such a value will normalised it to 00:00:00.
The total number of ticks(100ns units) contained. This is the resolution of the NpgsqlTime type. The resolution of the PostgreSQL interval type is by default 1µs = 1,000 ns. It may be smaller as follows:
time(0) - resolution of 1s (1 second)
time(1) - resolution of 100ms = 0.1s (100 milliseconds)
time(2) - resolution of 10ms = 0.01s (10 milliseconds)
time(3) - resolution of 1ms = 0.001s (1 millisecond)
time(4) - resolution of 100µs = 0.0001s (100 microseconds)
time(5) - resolution of 10µs = 0.00001s (10 microseconds)
time(6) or interval - resolution of 1µs = 0.000001s (1 microsecond)
As such, if the 100-nanosecond resolution is significant to an application, a PostgreSQL time will not suffice for those purposes.
In more frequent cases though, the resolution of time suffices. NpgsqlTime will always suffice to handle the resolution of any time value, and upon writing to the database, will be rounded to the resolution used.