diff --git a/test_regress/t/t_display.pl b/test_regress/t/t_display.pl
index b24191fcb..3f2256662 100755
--- a/test_regress/t/t_display.pl
+++ b/test_regress/t/t_display.pl
@@ -19,11 +19,12 @@ execute (
 [0] In top.v.sub2
 [0] In top.v.sub2.subblock2
 [0] Back \ Quote "
-[0] %X=0c %0X=c %0O=14 %B=001100
-[0] %x=0c %0x=c %0o=14 %b=001100
-[0] %D=12 %d=12 %01d=12 %06d=000012 %6d=    12
+[0] %X=00c %0X=c %0O=14 %B=000001100
+[0] %x=00c %0x=c %0o=14 %b=000001100
+[0] %D= 12 %d= 12 %01d=12 %06d=000012 %6d=    12
 [0] %x=00abbbbcccc %0x=abbbbcccc %o=00527356746314 %b=00000101010111011101110111100110011001100
 [0] %x=00abc1234567812345678 %0x=abc1234567812345678 %o=012570110642547402215053170 %b=000001010101111000001001000110100010101100111100000010010001101000101011001111000
+[0] %t=                   0 %03t=  0 %0t=0
 
 [0] %s=! %s= what! %s= hmmm!1234
 [0] hello, from a very long string. Percent %s are literally substituted in.
diff --git a/test_regress/t/t_display.v b/test_regress/t/t_display.v
index 585262538..0ee1e73e1 100644
--- a/test_regress/t/t_display.v
+++ b/test_regress/t/t_display.v
@@ -9,6 +9,7 @@ module t;
    reg [31:0] str; initial str = "\000\277\021\n";
    reg [47:0] str2; initial str2 = "\000what!";
    reg [79:0] str3; initial str3 = "\000hmmm!1234";
+   reg [8:0]  nine;
 
    sub sub ();
    sub2 sub2 ();
@@ -22,16 +23,19 @@ module t;
       $display("[%0t] Back \\ Quote \"", $time);  // Old bug when \" last on the line.
 
       // Display formatting
+      nine = {3'd0,quad[5:0]};
       $display("[%0t] %%X=%X %%0X=%0X %%0O=%0O %%B=%B", $time,
-	       quad[5:0], quad[5:0], quad[5:0], quad[5:0]);
+	       nine, nine, nine, nine);
       $display("[%0t] %%x=%x %%0x=%0x %%0o=%0o %%b=%b", $time,
-	       quad[5:0], quad[5:0], quad[5:0], quad[5:0]);
+	       nine, nine, nine, nine);
       $display("[%0t] %%D=%D %%d=%d %%01d=%01d %%06d=%06d %%6d=%6d", $time,
-	       quad[5:0], quad[5:0], quad[5:0], quad[5:0], quad[5:0]);
+	       nine, nine, nine, nine, nine);
       $display("[%0t] %%x=%x %%0x=%0x %%o=%o %%b=%b", $time,
 	       quad, quad, quad, quad);
       $display("[%0t] %%x=%x %%0x=%0x %%o=%o %%b=%b", $time,
 	       wide, wide, wide, wide);
+      $display("[%0t] %%t=%t %%03t=%03t %%0t=%0t", $time,
+	       $time, $time, $time);
       $display;
       // Not testing %0s, it does different things in different simulators
       $display("[%0t] %%s=%s %%s=%s %%s=%s", $time,
diff --git a/test_regress/t/t_display_noopt.pl b/test_regress/t/t_display_noopt.pl
index 792702f91..69208a3df 100755
--- a/test_regress/t/t_display_noopt.pl
+++ b/test_regress/t/t_display_noopt.pl
@@ -22,11 +22,12 @@ execute (
 [0] In top.v.sub2
 [0] In top.v.sub2.subblock2
 [0] Back \ Quote "
-[0] %X=0c %0X=c %0O=14 %B=001100
-[0] %x=0c %0x=c %0o=14 %b=001100
-[0] %D=12 %d=12 %01d=12 %06d=000012 %6d=    12
+[0] %X=00c %0X=c %0O=14 %B=000001100
+[0] %x=00c %0x=c %0o=14 %b=000001100
+[0] %D= 12 %d= 12 %01d=12 %06d=000012 %6d=    12
 [0] %x=00abbbbcccc %0x=abbbbcccc %o=00527356746314 %b=00000101010111011101110111100110011001100
 [0] %x=00abc1234567812345678 %0x=abc1234567812345678 %o=012570110642547402215053170 %b=000001010101111000001001000110100010101100111100000010010001101000101011001111000
+[0] %t=                   0 %03t=  0 %0t=0
 
 [0] %s=! %s= what! %s= hmmm!1234
 [0] hello, from a very long string. Percent %s are literally substituted in.