Convert clj-time date-time to UTC

[gvim]

I want to convert a time specified with a TZ datababse timezone such as
"America/Caracas" into a UTC date-time but I can only find in clj-time
from-time-zone and to-time-zone allowing the zone to be specified as a
string. I want:

(t/<some-utc-func> (t/date-time 1967 7 31 6 30) (t/time-zone-for-id
"America/Caracas"))

to give me:

#<DateTime 1967-07-31T10:30:00.000-00:00>

Even the (t/from-time-zone []) output would do if I could read the UTC
date and time straight from it.

gvim

[Stephen Gilardi]

This is not quite to your exact specification, but should help you to write what you want:

user> (defn to-utc [dt]
        (t/to-time-zone dt (t/time-zone-for-offset 0)))
#'user/to-utc
user> (to-utc (t/from-time-zone (t/date-time 1967 7 31 6 30) (t/time-zone-for-id "America/Caracas")))
#<DateTime 1967-07-31T10:30:00.000Z>

—Steve

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[gvim]

On 14/06/2014 16:12, Stephen Gilardi wrote:
> This is not quite to your exact specification, but should help you to
> write what you want:
>
> user> (defn to-utc [dt]
> (t/to-time-zone dt (t/time-zone-for-offset 0)))
> #'user/to-utc
> user> (to-utc (t/from-time-zone (t/date-time 1967 7 31 6 30)
> (t/time-zone-for-id "America/Caracas")))
> #<DateTime 1967-07-31T10:30:00.000Z>
>

Thanks. Can't think why it's not baked into the library, though, as it
must be a common requirement.

gvim

[Stephen Gilardi]

You’re welcome.

As another small refinement, I noticed that there’s a var for the utc timezone:

	(t/time-zone-for-offset 0)

can be replaced with

t/utc

—Steve

[gvim]

On 14/06/2014 17:59, Stephen Gilardi wrote:
> You’re welcome.
>
> As another small refinement, I noticed that there’s a var for the utc
> timezone:
>
> (t/time-zone-for-offset 0)
>
>
> can be replaced with
>
> t/utc
>

I tried t/utc in place of your function but it didn't produce the
desired result.

gvim

[Michael Klishin]

2014-06-14 20:49 GMT+04:00 gvim <gvi...@gmail.com>:

Can't think why it's not baked into the library, though, as it must be a common requirement.

Feel free to submit a pull request and a few tests. The clj-time maintainers are responsive

and the library is primarily driven by user feedback at this point.
--
MK

http://github.com/michaelklishin
http://twitter.com/michaelklishin

[gvim]

On 14/06/2014 21:59, Michael Klishin wrote:
> 2014-06-14 20:49 GMT+04:00 gvim <gvi...@gmail.com

> <mailto:gvi...@gmail.com>>:

>
> Can't think why it's not baked into the library, though, as it must
> be a common requirement.
>
>
> Feel free to submit a pull request and a few tests. The clj-time
> maintainers are responsive
> and the library is primarily driven by user feedback at this point.
> --
> MK

I'll have to leave it to the gods as I'm a mere mortal :)

gvim