CODEWITHSUNDEEP
juliadates.jl
imantha
imantha

Reputation: 3838

Unable to add two time components using Dates.jl

Hi I am unable to add two time components. Any idea why?

using Dates
t1 = Time(00,30,18)
t2 = Time(00,40,42)

t1 + t2
# Out > 
ERROR: MethodError: no method matching +(::Time, ::Time)
Closest candidates are:
  +(::Any, ::Any, ::Any, ::Any...) at operators.jl:560
  +(::StridedArray{var"#s832", N} where {var"#s832"<:Union{Dates.CompoundPeriod, Period}, N}, ::TimeType) at /buildworker/worker/package_linux64/build/usr/share/julia/stdlib/v1.6/Dates/src/deprecated.jl:10
  +(::Period, ::TimeType) at /buildworker/worker/package_linux64/build/usr/share/julia/stdlib/v1.6/Dates/src/arithmetic.jl:85
  ...
Stacktrace:
 [1] top-level scope
   @ REPL[5]:1

Upvotes: 1

Views: 82

Answers (2)

Jack Shannon
Jack Shannon

Reputation: 216

The appropriate Julia type for your use case is Period/CompoundPeriod. To replicate your use case:

julia> p1 = Minute(30) + Second(18)
30 minutes, 18 seconds

julia> p2 = Minute(40) + Second(42)
40 minutes, 42 seconds

julia> typeof.((p1, p2))
(Dates.CompoundPeriod, Dates.CompoundPeriod)

julia> p1 + p2
70 minutes, 60 seconds

julia> typeof(ans)
Dates.CompoundPeriod

Upvotes: 1

imantha
imantha

Reputation: 3838

As stated in the comments below here is hack that I used to solve the above answer.

using Dates
t1 = Time(00,30,18)
t2 = Time(00,40,42)

t1.instant + t2.instant |> Time #t1.instant returns time in nanoseconds
# Out >
01:11:00

Upvotes: -3

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