diff --git a/man/remind.1.in b/man/remind.1.in
index 03e359bb..c61550b9 100644
--- a/man/remind.1.in
+++ b/man/remind.1.in
@@ -3027,10 +3027,10 @@ The value of \fB$SysInclude\fR is "@prefix@/share/remind" on
 this installation.
 .TP
 .B $T (read-only, DATE type)
-Exactly equivalent to \fBtrigdate()\fR.  (See BUILT-IN FUNCTIONS.)
+Equivalent to \fBtrigdate()\fR.  (See BUILT-IN FUNCTIONS.)
 .TP
 .B $Tb (read-only, DATE type)
-Exactly equivalent to \fBtrigbase()\fR.  (See BUILT-IN FUNCTIONS.)
+Equivalent to \fBtrigbase()\fR.
 .TP
 .B $Td (read-only)
 Equivalent to \fBday(trigdate())\fR.
@@ -3038,6 +3038,9 @@ Equivalent to \fBday(trigdate())\fR.
 .B $Tm (read-only)
 Equivalent to \fBmonnum(trigdate())\fR.
 .TP
+.B $Tu (read-only)
+Equivalent to \fBtriguntil()\fR.
+.TP
 .B $Tw (read-only)
 Equivalent to \fBwkdaynum(trigdate())\fR.
 .TP
diff --git a/src/var.c b/src/var.c
index dd88bbb3..a3f035b8 100644
--- a/src/var.c
+++ b/src/var.c
@@ -270,6 +270,19 @@ static int trig_base_func(int do_set, Value *val)
     return OK;
 }
 
+static int trig_until_func(int do_set, Value *val)
+{
+    UNUSED(do_set);
+    if (LastTrigger.until == NO_UNTIL) {
+        val->type = INT_TYPE;
+        val->v.val = -1;
+    } else {
+        val->type = DATE_TYPE;
+        val->v.val = LastTrigger.until;
+    }
+    return OK;
+}
+
 static int trig_day_func(int do_set, Value *val)
 {
     int y, m, d;
@@ -1020,6 +1033,7 @@ static SysVar SysVarArr[] = {
     {"Today",          1,  TRANS_TYPE,   "today",              0,      0 },
     {"Tomorrow",       1,  TRANS_TYPE,   "tomorrow",           0,      0 },
     {"Tt",             0,  SPECIAL_TYPE, trig_time_func,       0,      0 },
+    {"Tu",             0,  SPECIAL_TYPE, trig_until_func,      0,      0 },
     {"Tuesday",        1,  TRANS_TYPE,   "Tuesday",            0,      0 },
     {"Tw",             0,  SPECIAL_TYPE, trig_wday_func,       0,      0 },
     {"Ty",             0,  SPECIAL_TYPE, trig_year_func,       0,      0 },
diff --git a/tests/test.cmp b/tests/test.cmp
index 73ac586f..355e4786 100644
--- a/tests/test.cmp
+++ b/tests/test.cmp
@@ -2827,6 +2827,7 @@ $SuppressImplicitWarnings  0           [0, 1]
                    $Today  "today"
                 $Tomorrow  "tomorrow"
                       $Tt  00:00
+                      $Tu  -1
                  $Tuesday  "Tuesday"
                       $Tw  -1
                       $Ty  -1
@@ -24674,6 +24675,7 @@ $Tm
 $Today
 $Tomorrow
 $Tt
+$Tu
 $Tuesday
 $Tw
 $Ty