diff --git a/main.zig b/main.zig
index d096c06bd32e4d0a67bb33ec347251ddcb602ba1..780419ea6da493345cf616ed0d5781e1ec04d0fe 100644
--- a/main.zig
+++ b/main.zig
@@ -30,3 +30,6 @@ test { try assertOk(1144509852789, "MMM",  "Apr"); }
 test { try assertOk(1144509852789, "MMMM", "April"); }
 test { try assertOk(1144509852789, "Q",    "2"); }
 test { try assertOk(1144509852789, "Qo",   "2nd"); }
+test { try assertOk(1144509852789, "D",    "8"); }
+test { try assertOk(1144509852789, "Do",   "8th"); }
+test { try assertOk(1144509852789, "DD",   "08"); }
diff --git a/time.zig b/time.zig
index a0a178b5d15ff10ac1b3f5ebc493129154a73f74..6d936573c9fd86340a2952d148a84e25feb0c342 100644
--- a/time.zig
+++ b/time.zig
@@ -236,6 +236,9 @@ pub const DateTime = struct {
                     .MMMM => try printLongName(writer, self.months, &[_]string{ "January", "February", "March", "April", "May", "June", "July", "August", "September", "October", "November", "December" }),
                     .Q => try writer.print("{}", .{self.months / 3 + 1}),
                     .Qo => try printOrdinal(writer, self.months / 3 + 1),
+                    .D => try writer.print("{}", .{self.days + 1}),
+                    .Do => try printOrdinal(writer, self.days + 1),
+                    .DDD => try writer.print("{}", .{self.dayOfThisYear() + 1}),
 
                     else => @compileError("'" ++ @tagName(tag) ++ "' not currently supported"),
                 }