Obtains the current year-month from the system clock _in the default time-zone.
!(p)
This will query the {@link Clock#systemDefaultZone() system clock} _in the default
time-zone to obtain the current year-month.
!(p)
Using this method will prevent the ability to use an alternate clock for testing
because the clock is hard-coded.
@return the current year-month using the system clock and default time-zone, not null
Obtains the current year-month from the system clock _in the default time-zone. !(p) This will query the {@link Clock#systemDefaultZone() system clock} _in the default time-zone to obtain the current year-month. !(p) Using this method will prevent the ability to use an alternate clock for testing because the clock is hard-coded.
@return the current year-month using the system clock and default time-zone, not null