+/* dtime.h -- time/date routines
+ *
+ * This code is Copyright (c) 2017, by the authors of nmh. See the
+ * COPYRIGHT file in the root directory of the nmh distribution for
+ * complete copyright information. */
+
+extern char *tw_moty[];
+extern char *tw_dotw[];
+extern char *tw_ldotw[];
+
+struct tws *dlocaltimenow(void);
+struct tws *dlocaltime(time_t *);
+struct tws *dgmtime(time_t *);
+char *dctime(struct tws *);
+char *dtimenow(int);
+char *dtime(time_t *, int);
+char *dasctime(struct tws *, int);
+char *dtimezone(int, int);
+time_t dmktime(struct tws *);
+void set_dotw(struct tws *);
+int twsort(struct tws *, struct tws *);