Get actual DateTime of a device in Offline Mode

Question

I am developing an android application. I need to solve the below mentioned issue in my application:

1) The application can work in online as well as offline. The app has a feature to create and save the NOTES inside the application. Also, When the app gets internet connection, I need to send the NOTES to backend server. I have a field called 'DATECREATED' in each NOTE (the datetime where the actual NOTE was created)

ISSUE: If the User has set the DateTime wrongly in the device, My application sends the incorrect DATETIME to server. I am wondering how could I solve the issue? Any Ideas would be appreciable.

Answer 1

When you eventually post to your server, just add that specific time as well. new Date().getTime() will give you a value that you can use to compare with the datetime of your server. If it's for example 2 hours later, then just set the time of the post 2 hours back.

So send both the time when the post was submitted by the user and the time when it was actually sent.