This is outdated advice. Whatsapp has since added the feature to their Android and Java apps. If you want to hide your last seen time just update your app to th

This is outdated advice. Whatsapp has since added the feature to their Android and Java apps. If you want to hide your last seen time just update your app to the latest version. One interesting thing they've done is that if you hide your last seen time you can't see anyone elses either. Pretty clever on their part as it ensures that most people won't do it.