Converts dates to strings using the same format specifiers as strftime Note: This does not mimic strftime perfectly. Certain strftime commands, are not supported, and will convert as if they were literals. Certain complicated commands, like those dealing with the week of the year probably don't have exactly the same behavior as strftime. These limitations are due to use SimpleDateTime. If the conversion was done manually, all these limitations could be eliminated. The interface looks like a subset of DateFormat. Maybe someday someone will make this class extend DateFormat.