in your console type:
timedatectl
you should see something like this:
pi@rpi300we:~ $ timedatectl
Local time: Wed 2019-09-18 19:15:58 EDT
Universal time: Wed 2019-09-18 23:15:58 UTC
RTC time: n/a
Time zone: America/New_York (EDT, -0400)
Network time on: yes
NTP synchronized: yes
RTC in local TZ: no