using Pkg
Pkg.add("TimeSeries")

using TimeSeries
using Dates
dates = Date(2018, 1, 1):Day(1):Date(2018, 12, 31)
ta = TimeArray(dates, rand(length(dates)))
timestamps = DateTime(2018, 1, 1):Hour(1):DateTime(2018, 12, 31)
ta = TimeArray(timestamps, rand(length(timestamps)))