struct tm tm_tmp;
size_t status;
- if (localtime_r (&t, &tm_tmp) == NULL)
+ /* RFC 1123 *requires* the time to be GMT and the "GMT" timezone string.
+ * Apache will ignore the timezone if "localtime_r" and "%z" is used,
+ * resulting in weird behavior. */
+ if (gmtime_r (&t, &tm_tmp) == NULL)
return (errno);
- status = strftime (buffer, buffer_size, "%a, %d %b %Y %T %z", &tm_tmp);
+ status = strftime (buffer, buffer_size, "%a, %d %b %Y %T GMT", &tm_tmp);
if (status == 0)
return (errno);