Checklist

• I can reproduce the bug with the latest version given here.
• I made sure that there are no existing issues - open or closed - to which I could contribute my information.
• I made sure that there are no existing discussions - open or closed - to which I could contribute my information.
• I have read the FAQs inside the app (Menu -> About -> FAQs) and my problem isn't listed.
• I have taken the time to fill in all the required details. I understand that the bug report will be dismissed otherwise.
• This issue contains only one bug.
• I have read and understood the contribution guidelines.

Affected app version

1.0.3

Affected Android/Custom ROM version

Android 13, patchlevel 2024-01-05 (FP4.TP29.C.0101.20240121)

Affected device model

Fairphone 4

How did you install the app?

F-Droid / IzzyOnDroid

Steps to reproduce the bug

Precondition: In Fossify Contacts, have Settings → Show private contacts to Fossify Dialer, Fossify SMS Messenger and Fossify Calendar enabled.

1. In Fossify Contacts, create a contact in Phone Storage (not visible by other apps)
2. Fill in a birthday before 1970-01-01
3. Save the contact
4. Open Fossify Calendar. It will immediately import the added contact
5. In Fossify Calendar, navigate to the contact's birthday anniversary (e.g. 2024-04-14 if the contact was born in 1962-04-14)

Expected behavior

Show the real age of the contact at their birthday anniversary. For a contact born on 1962-04-14, that would be 62 years on 2024-04-14.

Actual behavior

For every person born before 1970, the age is calculated as if they were born in 1970 (on the same day). I.e., the person born on 1962-04-14 would be shown age 54 on 2024-04-14, as if it were born on 1970-04-14.

Screenshots/Screen recordings

Contact:

Calendar date (2024-04-14):

Additional information

This issue had been reported against Simple Calendar before (SimpleMobileTools/Simple-Calendar/#1812), where @Aga-C gave a hint to the probable cause for this issue:

The problem is only with private contacts from Simple Contacts […]. It seems to be related to this fragment of code in MainActivity:

                    if (date.year < 70) {
                        date.year = 70
                    }

Fossify Calendar inherited this code in app/src/main/kotlin/org/fossify/calendar/activities/MainActivity.kt.