Dear user, My data is 30 minutes interval. I want to declare as time series. For daily time series data, we uses following code:
gen newt = td(15mar1993) + t - 1
tsset newt, daily

Similarly can we create time series for 30 minutes interval data. Please suggest the Stata code.
My time variable is like this
6/3/2018 17:00
6/3/2018 17:30
6/3/2018 18:00
6/3/2018 18:30
6/3/2018 19:00
6/3/2018 19:30
6/3/2018 20:00
6/3/2018 20:30
6/3/2018 21:00
6/3/2018 21:30
6/3/2018 22:00
6/3/2018 22:30
6/4/2018 0:30
6/4/2018 1:00
6/4/2018 1:30
6/4/2018 2:00
6/4/2018 2:30
6/4/2018 3:00
6/4/2018 3:30
6/4/2018 4:00
6/4/2018 4:30
6/4/2018 5:00
6/4/2018 5:30
6/4/2018 6:00
6/4/2018 6:30
6/4/2018 7:00
6/4/2018 7:30
6/4/2018 8:00
6/4/2018 8:30
6/4/2018 9:00
6/4/2018 9:30
6/4/2018 10:00
6/4/2018 10:30
6/4/2018 11:00
6/4/2018 11:30
6/4/2018 12:00
6/4/2018 12:30
6/4/2018 13:00
6/4/2018 13:30
6/4/2018 14:00
6/4/2018 14:30
6/4/2018 15:00
6/4/2018 15:30
6/4/2018 16:00
6/4/2018 16:30
6/4/2018 17:00
6/4/2018 17:30
6/4/2018 18:00
6/4/2018 18:30
6/4/2018 19:00
6/4/2018 19:30
6/4/2018 20:00
6/4/2018 20:30
6/4/2018 21:00
6/4/2018 21:30
6/4/2018 22:00
6/4/2018 22:30
6/4/2018 23:00
6/4/2018 23:30
6/5/2018 0:00
6/5/2018 0:30
6/5/2018 1:00
6/5/2018 1:30
6/5/2018 2:00
6/5/2018 2:30
6/5/2018 3:00
6/5/2018 3:30
6/5/2018 4:00