Convert a custom Date and Time string to datetime

Tryparseexact is an extension method that can be used to convert a custom datetime string to datetime. For example, a date and time string is like "15:14:56", which is not a standard date and time. Character string. parse or tryparse cannot be used, but parseexact can be used. Code: String datetimestring = "15:14:56 "; Datetime time = datetime. tryparseexact (datetimestring, "Yyyy-mm-dd hh: mm: SS", system. Globalization. datetimestyles. None, out time );