Dating calculator widget
Personally, I only use this app only for hiding apps.
All in all, Smart Hide Calculator does the job to hide apps you don't want others to have free access to.
They will disappear from your app drawer and appear as if they're no longer installed.
Be aware that any locked-apps will still show as shortcuts on your home screen, although they will not be accessible (showing an "App Not Installed" message).
Date Calculator also adds or subtracts a certain number of days from a given date.
It can perform calculations based on working days only or inclusive of start/end dates.
If you decide to go this route, be aware of the issues others have run in to.Despite all efforts, the Julian calendar still required further reform, since the calendar drifted with respect to the equinoxes and solstices by approximately 11 minutes per year.By 1582, this resulted in a difference of 10 days from what was expected.Note that the hiding function is accomplished by "freezing" apps, which essentially removes them from your visible app list while not actually removing them from your device.
The process of freezing requires deep system access, and for that reason, your Android device must be rooted.
The months of April, June, September, and November have 30 days, while the rest have 31 days except for February, which has 28 days in a standard year, and 29 in a leap year.