[julia-users] Getting sequence of datetime and format it

[akrun]

I have a data similar to the one below

sdt1 = DataFrame(ID = 1:2, StartTime = DateTime(["4/13/2016 07:00", 
"4/13/2016 07:15"], "m/d/y H:M"), EndTime = DateTime(["4/13/2016 12:00", 
"4/13/2016 12:15"], "m/d/y H:M"))

I would like to get the sequence between StartTime and EndTime by 30 minutes

I can get it formatted using

    for i in 1:nrow(sdt1)
    si = 
Dates.format([sdt1[i,:StartTime]:Dates.Minute(30):sdt1[i,:EndTime]], 
"HH:MM")
    println(si)
    end 
 
and get the result as

     
Any["07:00","07:30","08:00","08:30","09:00","09:30","10:00","10:30","11:00","11:30","12:00"]
    
Any["07:15","07:45","08:15","08:45","09:15","09:45","10:15","10:45","11:15","11:45","12:15"]


Is it possible to get an output like the one I get with `data.table` from R 
by storing the intermediate results in a array or so?

      library(data.table)
     dt1 <- data.table(ID = 1:2, StartTime =as.POSIXct(c("4/13/2016 07:00", 
"4/13/2016 07:15"), "%m/%d/%Y %H:%M", tz = "GMT"), EndTime 
=as.POSIXct(c("4/13/2016 12:00", "4/13/2016 12:15"), "%m/%d/%Y %H:%M", tz = 
"GMT"))
    
      dt1[, .(time = format(seq(StartTime, EndTime, by = "30 min"), 
"%H:%M")) ,by = ID]
    ID  time
 1:  1 07:00
 2:  1 07:30
 3:  1 08:00
 4:  1 08:30
 5:  1 09:00
 6:  1 09:30
 7:  1 10:00
 8:  1 10:30
 9:  1 11:00
10:  1 11:30
11:  1 12:00
12:  2 07:15
13:  2 07:45
14:  2 08:15
15:  2 08:45
16:  2 09:15
17:  2 09:45
18:  2 10:15
19:  2 10:45
20:  2 11:15
21:  2 11:45
22:  2 12:15
    ID  time
    


Thanking you,