Clojure - Get hour only from Time String -


i have time string "2017-08-30 09:01:48". there way round time nearest hour , return hour?

so if time "2017-08-30 09:01:48" return 9

if time "2017-08-30 09:51:48" return 10

i looked @ library clj-time couldn't see in there me

any appreciated?

clj-time thin wrapper joda time library. can use methods of underlying java objects perform common date manipulations.

for rounding hour, can access hour datetime.property , use api round nearest hour follows: 

(require '[clj-time.format :as tf])  (-> (tf/parse "2017-08-30 09:01:48")     .hourofday     .roundhalfceilingcopy     .gethourofday)

there several rounding methods (roundceilingcopy, roundhalffloorcopy, etc.) choose from, depending on exact case.

note also, don't need specify formatter, date string in iso8601 format.


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