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saralilyb/make-iso8601-timestamp.clj

Created February 4, 2018 23:27
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makes an iso8601 timestamp using JUST CLOJURE WITHOUT SEVEN THOUSAND LIBRARIES COME ON KIDS LEARN HOW TO USE WHAT YOU HAVE
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make-iso8601-timestamp.clj
(defn maketimestamp
"makes iso8601 timestamp manually
(works pre java 8)
from https://stackoverflow.com/questions/3914404/how-to-get-current-moment-in-iso-8601-format-with-date-hour-and-minute"
[]
(let [tz (java.util.TimeZone/getTimeZone "UTC")
df (new java.text.SimpleDateFormat "yyyy-MM-dd'T'HH:mm:ss'Z'")]
(.setTimeZone df tz)
(.format df (new java.util.Date))))
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saralilyb commented Feb 4, 2018 •
edited
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can also do

(:import
    (java.time ZonedDateTime)
    (java.time.format DateTimeFormatter))

(defn time8601
  "generate iso8601 timestamp

   requires java 8 & import statements above
   https://gist.github.com/minimal/b79f50fe6cdd2f6da9698c4a47599afe"
  []
  (.. (ZonedDateTime/now) (format DateTimeFormatter/ISO_INSTANT)))

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