diff --git a/main.zig b/main.zig
index 780419ea6da493345cf616ed0d5781e1ec04d0fe..73c303ee3d2ddaedbbcbdf9a989eb0bfe38364a4 100644
--- a/main.zig
+++ b/main.zig
@@ -33,3 +33,6 @@ test { try assertOk(1144509852789, "Qo",   "2nd"); }
 test { try assertOk(1144509852789, "D",    "8"); }
 test { try assertOk(1144509852789, "Do",   "8th"); }
 test { try assertOk(1144509852789, "DD",   "08"); }
+test { try assertOk(1144509852789, "DDD",  "98"); }
+test { try assertOk(1144509852789, "DDDo", "98th"); }
+test { try assertOk(1144509852789, "DDDD", "098"); }
diff --git a/time.zig b/time.zig
index 6d936573c9fd86340a2952d148a84e25feb0c342..67b7a891d4d0a9d124b1fb9d5c80e61a02a1f6e1 100644
--- a/time.zig
+++ b/time.zig
@@ -239,6 +239,8 @@ pub const DateTime = struct {
                     .D => try writer.print("{}", .{self.days + 1}),
                     .Do => try printOrdinal(writer, self.days + 1),
                     .DDD => try writer.print("{}", .{self.dayOfThisYear() + 1}),
+                    .DDDo => try printOrdinal(writer, self.dayOfThisYear() + 1),
+                    .DDDD => try writer.print("{:0>3}", .{self.dayOfThisYear() + 1}),
 
                     else => @compileError("'" ++ @tagName(tag) ++ "' not currently supported"),
                 }