The Essential Tools Module provides classes for working with dates and times that offer functionality not included in the C++ Standard Library. You can perform date and time tasks such as calculating the number of days between two dates, calculating the day of the week a date represents, reading and writing days or times in arbitrary formats, and performing conversions between RWDateTime and strings in the International Standard Organization’s (ISO) 8601 standard.

Table 2 lists the Date and Time Classes. This chapter provides information on using some of these classes; the SourcePro API Reference Guide provides detailed information on each class in this class group.