diff --git a/misc-utils/cal.1 b/misc-utils/cal.1
index f99c6b495..60eaa5c3b 100644
--- a/misc-utils/cal.1
+++ b/misc-utils/cal.1
@@ -195,13 +195,13 @@ highlighted if the calendar is displayed on a terminal.  If no parameters are
 specified, the current month's calendar is displayed.
 .SH NOTES
 A year starts on January 1.  The first day of the week is determined by the
-locale.
+locale or the
+.BR \-\-sunday \ and \ \-\-monday \ options.
 .PP
-The week numbering depends on the choice of the first day of the week.  If Sunday
-(the default) is used for the first day of the week, then the customary North
-American numbering will be used, i.e. the first Sunday of the year starts the
-first week.  If Monday is selected, then the ISO-8601 standard week numbering
-is used, where the first Thursday of the year is in week number 1.
+The week numbering depends on the choice of the first day of the week.  If it
+is Sunday then the customary North American numbering is used, where 1 January
+is in week number 1.  If it is Monday then the ISO 8601 standard week numbering
+is used, where the first Thursday is in week number 1.
 .SH COLORS
 Implicit coloring can be disabled as follows:
 .RS
diff --git a/misc-utils/cal.c b/misc-utils/cal.c
index 894894ab6..438e7f09b 100644
--- a/misc-utils/cal.c
+++ b/misc-utils/cal.c
@@ -1003,7 +1003,7 @@ static int week_to_day(const struct cal_control *ctl)
 	if (ctl->weektype & WEEK_NUM_ISO)
 		yday -= (wday >= FRIDAY ? -2 : 5);
 	else
-		yday -= (wday == SUNDAY ? 6 : -1);	/* WEEK_NUM_US */
+		yday -= 6;	/* WEEK_NUM_US */
 	if (yday <= 0)
 		return 1;