String Was Not Recognized As A Valid DateTime

Iv'e been trying to get a final year from subtracting two dates and getting a total year timespan. Below is my code. It keeps throwing an error as described in the title.

Code (CSharp):

1.  
2.             int _thisYear = DateTime.Now.Year;
3.             int _thisDay = DateTime.Now.Day;
4.             int _thisMonth = DateTime.Now.Month;
5.                                  
6.                                  
7.             string ThisDate = _thisDay + "/" + _thisMonth + "/" + _thisYear;
8.             string BDay = _userDay + "/" + _bdayMonth + "/" + _userYear;
9.             Debug.Log("this date is" + " " + ThisDate);
10.             Debug.Log("bday is" + " " + BDay);
11.          
12.              //Throws error here
13.             DateTime dateToday = System.DateTime.ParseExact(ThisDate, "dd/MM/yyyy", CultureInfo.InvariantCulture);
14.              DateTime dateBday = System.DateTime.ParseExact(BDay, "dd/MM/yyyy", CultureInfo.InvariantCulture);
15.                                  
16.                                  
17.                TimeSpan _finalDates = dateToday - dateBday;
18.                Age.text = _finalDates.ToString();
19.  
20.  
21.  

My debugs return this : this date is 13/3/2020 & bday is 10/7/1979

 

Those strings don't match your format string, the month is missing a digit:
dd/MM/yyyy
13/3?/2020
10/7?/1979
You need to add leading zeros to the month to make it match
13/03/2020
10/07/1979

 

Yeah that still did nothing. I fixed it by this..

Code (CSharp):

1.  
2.        int _thisYear = DateTime.Now.Year;
3.        int _thisDay = DateTime.Now.Day;
4.        int _thisMonth = DateTime.Now.Month;
5.        int _thisHour = DateTime.Now.Hour;
6.        int day = Convert.ToInt32(_userDay);
7.        int year = Convert.ToInt32(_userYear);
8.        DateTime fromTrimmed = new DateTime(_thisYear, _thisMonth, _thisDay, 0, 0, 0);
9.        DateTime toTrimmed = new DateTime(year, _bdayMonth, day, 0, 0, 0);
10.  
11.         string final = (fromTrimmed - toTrimmed).TotalDays.ToString();
12.  
13.         int FinalInt = Convert.ToInt32(final);
14.  
15.          Age.text = (FinalInt / 365).ToString() + " " + "Yrs Old";

 

Use DateTime.ParseExact.- Converts the specified string representation of a date and time to its C# Dateime equivalent using the specified format and culture-specific format information. The format of the string representation must match the specified format exactly. ParseExact and TryParseExact allows to use a custom format string.

Code (CSharp):

1. DateTime date = DateTime.ParseExact(strDate, "dd/MM/yyyy", CultureInfo.InvariantCulture);

The IFormatProvider parameter specifies the culture to use to parse the date. Unless your string comes from the user, you should pass CultureInfo.InvariantCulture. If the string does come from the user, you should pass CultureInfo.CurrentCulture, which will use the settings that the user specified in Regional Options in Control Panel.