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  1. import java.time.Instant;
  2.  
  3. class Ideone {
  4. public static void main(String[] args) {
  5. final long nowMillis = (long) 1627065646.444 * 1000;
  6. System.out.println(Instant.ofEpochMilli(nowMillis));
  7. }
  8. }
Success #stdin #stdout 0.1s 48584KB
stdin
Standard input is empty
stdout
2021-07-23T18:40:46Z