Compatibility with Datetime

[aviks]

So I'm asking this without doing any investigating, but I thought you'd have know the answer offhand.

How close is this API from Datetime.jl? Is there going to be a migration effort needed?

[quinnj]

Hmmm.....off the top of my head:

• date/datetime have become Date/DateTime
• The type parameters were removed from the Date and DateTime types
• TimeZones are much more decoupled now
• Leap seconds are no longer factored in (DateTime is now based on the UT angle second)
• The parsing/formatting API is much more fleshed out
• Period constructors have gone from lowercase and optional plural to proper case singular, i.e. year(1)/years(1) => Year(1)
• The previous date(2013):anonymous function:date(2014) API has been replaced by the adjusters interface (toprev,tonext,tofirst,tolast, and recur).

Those are the main changes, so I guess it really depends on how low-level a user was interacting with things, but I it could also be as easy as changing all the date(2013) to Date(2013), as was pretty much the case for my test run in migrating TimeSeries to the new Dates package https://github.com/JuliaStats/TimeSeries.jl/pull/125

Do let me know if you have any other specific questions or packages you're concerned about. I'm happy to do PRs for anyone who wants things migrated.

[aviks]

Thanks. I just wanted a sense of where the major changes were.