Considering the size of the data, and the inquiry in question, a moderator suggested possibly using a t-test for significance.  It should be noted that this was not the best option.  T-test assumes the underlying data follows a Gaussian distribution, which this data does not.  However, due to the large sample size, it can be safely assumed that it is approaching the Gaussian.

Null Hypothesis: During the month of Jan 2018, the mean trip duration value for users born after 1980 was not equal to the trip duration for users born before 1980