#include <time.h>
#include <string>
+#include "support/strfwd.h"
+
namespace lyx {
namespace support {
time_t current_time();
-/** Returns a locale-dependent formatting of the date
- * and time encoded in \c time. The \p fmt string
- * holds the formatting arguments of \c strftime.
+/** Returns a locale-dependent formatting of the date and time encoded in \c t
+ * The \p fmt string holds the formatting arguments of QDateTime::toString().
+ * If fmt is empty then the formatting of the date and time is itself according
+ * to the locale.
*/
-std::string const formatted_time(time_t t, std::string const & fmt);
+docstring formatted_datetime(time_t t, std::string const & fmt = "");
/**
* Inverse of asctime(gmtime()).