Whatsapp ma offline matena step.
∆ Go to menu
∆ Open WhatsApp Messenger
∆ Go to Settings then tap on Chat settings
∆ Go to Advanced
∆ Off Last Seen Timestamp.
That's all you have to do now anyone can't see when you were online or you are currently online. If you want to appear online again or want to let other people see when you were online last just follow the same instructions and turn on Last Seen Timestamp at last step.
Hope it helps you also you can check out our latest posts for more tips and tricks that may help you out.