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ihercowitz/std-militar.clj

Last active July 22, 2016 15:51
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Convert Standard Time (AM/PM) to Militar Time (24h)
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std-militar.clj
(defmulti std-to-militar (fn [hour time-info] (keyword time-info)))
(defmethod std-to-militar :AM [hour _]
(format "%02d" (if (= hour 12) 0 hour)))
(defmethod std-to-militar :PM [hour _]
(if (= hour 12) hour (+ hour 12)))
(defn convert-time [hour]
(let [[hour minute seconds time-info] (rest (re-find #"(\d+):(\d+):(\d+)(\w+)" hour))]
(clojure.string/join ":" [(std-to-militar (Integer/parseInt hour) time-info) minute seconds])))
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