julia> using Dates
julia> ts1 = DateTime("2019-10-01T12:00:00.00")
2019-10-01T12:00:00
julia> ts2 = DateTime("2019-10-02T03:23:40.00")
2019-10-02T03:23:40
julia> canonicalize(ts2-ts1)
15 hours, 23 minutes, 40 seconds
Some more manipulation:
julia> using Unitful
julia> using Pipe
julia> @pipe ustrip.(p.periods) |> join(_,":")
"15:23:40"
Regarding the use of Pipe, you can see endless discussions in recent thread here: https://discourse.julialang.org/t/fixing-the-piping-chaining-issue/89654 or just read the manual here (more useful): https://github.com/oxinabox/Pipe.jl