Google Gmail Custom Time Introducing Gmail Custom TimeTM Be on time. Every time.* How do I use it? Just click "Set custom time" from the Compose view. Any email you send to the past appears in the proper chronological order in your recipien
J. Leskovec, J. Kleinberg, and C. Faloutsos. KDD '05: Proceeding of the eleventh ACM SIGKDD international conference on Knowledge discovery in data mining, page 177--187. New York, NY, USA, ACM Press, (2005)