object: add a type for storing, parsing, and stringifying date/time values

object/datetime.h

@@ -0,0 +1,17 @@
+#ifndef _BLUELIB_DATETIME_H_
+#define _BLUELIB_DATETIME_H_
+
+#include "object.h"
+
+struct b_datetime {
+	struct b_object dt_base;
+	unsigned int dt_year, dt_month, dt_day;
+	unsigned short dt_hour, dt_min, dt_sec;
+	unsigned int dt_msec;
+
+	bool dt_has_date, dt_has_time, dt_localtime;
+	unsigned short dt_zone_offset_hour, dt_zone_offset_minute;
+	bool dt_zone_offset_negative;
+};
+
+#endif