Returns the difference in local time expressed in hours between two time zones at a given instant in time. The difference due to daylight saving time or Summer and Winter time as well as historical changes in time zones are taken into account.
tz_time_diff(
when = lubridate::now(),
tz.target = lubridate::tz(when),
tz.reference = "UTC"
)A numeric value.
datetime A time instant
character Two time zones using names recognized by functions from package 'lubridate'