Hi all,

I’m probably overlooking something obvious, but I can’t work out how to construct a `DateTime`

using as input the `Int64`

returned by `Dates.value()`

. Note the following:

```
julia> dt = now()
2017-11-21T15:38:01.282
julia> i = Dates.value(dt)
63646961881282
julia> dt2 = DateTime(i)
132444472-12-19T17:48:18.304
```

Obviously `dt`

is not equal to `dt2`

since in the call `DateTime(i)`

, the `i`

is being interpreted as years, rather than milliseconds since epoch.

So how do I construct a `DateTime`

using `i`

, such that `dt`

will equal `dt2`

? I can see how I could divide `i`

up into years, months, days, hours, minutes, seconds, milliseconds, but I’m fairly sure there must be a better method than this, given that `DateTime`

is literally just an immutable wrapper on `i`

.

Note that `DateTime(Base.Dates.UTInstant{Base.Dates.Millisecond}(i))`

works, but also gives a deprecation warning which I found a bit confusing.

Incidentally, the reason why I might want to do this is so that I can write `DateTime`

to a binary file, then read it back in later with minimum overhead.

Cheers,

Colin