Here is the traditional means to syncing time. This approach was taught to me by Dickson.

date # determine current timezone

If need be change your time zone,

sudo dpkg-reconfigure tzdata # sets the timezone

Next we make sure the time stays correct.

Make ntpdate Scheduled in the chrontab (Scheduled Job):

sudo crontab -e

At this point you will be asked to choose a default editor. I recommend selecting nano if you are a beginner. You can always change the default editor later with, select-editor.

Add to the bottom of the file,

# update time and date every morning at 5:00.
00 05 * * * ntpdate ntp.ubuntu.com pool.ntp.org

Hit keys, CTRL-O and Enter (save in nano)
Hit keys, CTRL-X (exit in nano)

Here is another method using a file creation.

Next, verify that the crontab was updated successfully by listing the crontab. (Note: you don't need sudo to do this).

crontab -l