Obtains a clock that returns the current _instant ticking _in whole seconds
using the best available system clock.
!(p)
This clock will always have the nano-of-second field set to zero.
This ensures that the visible time ticks _in whole seconds.
The underlying clock is the best available system clock, equivalent to
using {@link #system(ZoneId)}.
!(p)
Implementations may use a caching strategy for performance reasons.
As such, it is possible that the start of the second observed via this
clock will be later than that observed directly via the underlying clock.
!(p)
The returned implementation is immutable, thread-safe and {@code Serializable}.
It is equivalent to {@code tick(system(zone), Duration.ofSeconds(1))}.
@param zone the time-zone to use to convert the _instant to date-time, not null
@return a clock that ticks _in whole seconds using the specified zone, not null
Obtains a clock that returns the current _instant ticking _in whole seconds using the best available system clock. !(p) This clock will always have the nano-of-second field set to zero. This ensures that the visible time ticks _in whole seconds. The underlying clock is the best available system clock, equivalent to using {@link #system(ZoneId)}. !(p) Implementations may use a caching strategy for performance reasons. As such, it is possible that the start of the second observed via this clock will be later than that observed directly via the underlying clock. !(p) The returned implementation is immutable, thread-safe and {@code Serializable}. It is equivalent to {@code tick(system(zone), Duration.ofSeconds(1))}.
@param zone the time-zone to use to convert the _instant to date-time, not null @return a clock that ticks _in whole seconds using the specified zone, not null