Time problem AM/PM

I have a problem in a time field. The field is setted to store the time value in 24h format, separated by a " . ". Now the problem is that if the client has time format with AM/PM the value is stored correctly but adding PM / AM at the end of the value (ex. 14.05.00 AM ).

How can I inhibit the store of the PM/AM letters?

Thanks in advance

Subject: Are you using a date time field?

If you are using a date time field then it doesn’t matter, the time is stored in Notes internal format. If you’re using as text field to store your date/time then don’t it’s poor practise and will create problems like this for you.