I’ve read and tried the functionality included in Julia 1.0 for dates and times… I do not find an easy way - without defining functions or making manual calculations - of doing something simple as calculating the average pace when running a distance… In Excel is just one line of code… For example, i…

What have you tried so far? Maybe have a look at the docs , especially the Period or the Time type (there do seem to be some missing arithmetic for durations though).

It seems Dates is intended for use for actual dates “management”. Division of an actual date is not something meaningful (for example, what is something div( 09/06/2018 , 5) supposed to mean?) For your actual usage I think you’d be better of with something like Unitful.jl where just the unit “time”…

Unitful is also a good idea, but you’re going to lose that separation between minutes and seconds - perhaps a new package for duration arithmetic would be good, since there doesn’t seem to be one? I’m thinking regular operations (*, /, %, +, -, for a start?) with conversion between different overflo…

Note that your ans variable is the DataType Dates.CompoundPeriod, that is why it is not working. julia> using Dates julia> Minute(50) 50 minutes julia> typeof(ans) Minute julia> Minute(50) + Minute(60) 110 minutes julia> t = Minute(50) + Minute(60) + Second(30) 110 minutes, 30 seconds julia> t…

Of course, thank you! :sweat_smile: It’s also not working for *. Yes, that’s what I meant when I said you’d be losing the distinction between the fields - which is quite useful when talking about a Duration. That’s why I suggested maybe a new package would be a good idea for this :slight_smile:

[image] Sukera: you’re going to lose that separation between minutes and seconds I think that this is just a display/formatting issue. Work with seconds, display in mm:ss

While true, fixing that display for just that specific use case using Unitful seems not that easy - and to do it without type piracy or overwriting some other display seems outright impossible to me (unless I’m missing something). At least when trying to support the custom final overflow field I des…

[image] Sukera: to do it without type piracy or overwriting some other display seems outright impossible to me If the only thing I need to fix is displaying the result, I would just use a wrapper type and define Base.show for it.

Thank you all of you for your answers and feedback. Here are my thoughts… You are the experts… As Date and Time are part of the Julia 1.0, I would extend the functionality for ‘duration’ in the next version, allowing for example operations. I would simplify the usage of period too by allowing its cr…

What about julia> d1 2018-09-03T11:49:09 julia> d2 2018-09-03T11:45:33 julia> period = d1-d2 216000 milliseconds julia> Dates.format(convert(DateTime, period), "MM:SS") "03:36" julia> speed = 300/(Dates.value(period)/1000) 1.3888888888888888

Using time (minutes, seconds) to calculate duration of events

General Usage

stevengj September 7, 2018, 4:11pm 18

julia> canonicalize(Dates.CompoundPeriod((Second(Minute(32))+Second(45))/5))
6 minutes, 33 seconds

Operations with time duration

Topic		Replies	Views
Operations with time duration General Usage dates , time	20	3438	July 22, 2021
DateTime: Time division General Usage dates , algebra	9	874	February 28, 2023
[Dates] Division of Periods New to Julia dates	5	652	February 20, 2022
Difference between two dates in Julia Performance dates , datetime	8	1606	August 28, 2023
The duration between two times, expressed as nearest whole minutes New to Julia	6	1279	July 2, 2020

Using time (minutes, seconds) to calculate duration of events

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