diff --git a/README.md b/README.md
index 00559cf..23015cc 100644
--- a/README.md
+++ b/README.md
@@ -84,7 +84,7 @@ const parser = new Parser({ formatParsers: [customFormatParser, decimalParser] }
 
 ### Supported Formats
 
-Currently the out-of-the-box format parsers supports various formats and handles their various variations ,e.g. with or without whitespaces, gracefully:
+Currently the out-of-the-box format parsers supports various formats and handles their various variations, i.e. with or without whitespaces and comma, gracefully:
 
 -   `1° 5°`
 -   `1.234° 5.678°`
@@ -107,6 +107,12 @@ Currently the out-of-the-box format parsers supports various formats and handles
 -   `N 4007.38 W 7407.38`
 -   `4007 N 7407 W`
 -   `4007.38 N 7407.38 W`
+-   `40°7'23" -74°7'23"`
+-   `40°7'23", -74°7'23"`
+-   `40°7'23.123", -74°7'23.123"`
+-   ``
+-   ``
+-   ``
 -   ``
 -   ``
 -   ``
diff --git a/src/parser.ts b/src/parser.ts
index 9f898c3..0270c05 100644
--- a/src/parser.ts
+++ b/src/parser.ts
@@ -8,6 +8,7 @@ import { DecimalUnsignedPrefixedHemisphereFormat } from './formats/decimal-unsig
 import { DecimalUnsignedSuffixedHemisphereFormat } from './formats/decimal-unsigned-suffixed-hemisphere-format.js';
 import { DmUnsignedPrefixedHemisphereFormat } from './formats/dm-unsigned-prefixed-hemisphere-format.js';
 import { DmUnsignedSuffixedHemisphereFormat } from './formats/dm-unsigned-suffixed-hemisphere-format.js';
+import { DmsSignedFormat } from './formats/dms-signed-format.js';
 import type { Coordinate } from './types.js';
 import { validateSchema } from './validate-schema.js';
 
@@ -52,6 +53,7 @@ export class Parser {
             new DecimalSignedSuffixedHemisphereFormat({ precision: precision }),
             new DmUnsignedPrefixedHemisphereFormat({ precision: precision }),
             new DmUnsignedSuffixedHemisphereFormat({ precision: precision }),
+            new DmsSignedFormat({ precision: precision }),
         ];
         let formatParsers = options?.formatParsers || defaultParsers;
         if (formatParsers.length > 0 && extendFormatParsers === true) {
diff --git a/tests/parser.test.ts b/tests/parser.test.ts
index 3a8edb6..73b749c 100644
--- a/tests/parser.test.ts
+++ b/tests/parser.test.ts
@@ -290,4 +290,50 @@ describe('Test that all configured format parsers do not interfere', () => {
             expect(result.longitude).toBe(-74.123);
         });
     });
+
+    describe('test dsm signed format', () => {
+        it(`returns the correct latitude and longitude for 40°7'23" -74°7'23"`, () => {
+            const parser = new Parser();
+            const result = parser.parse(`40°7'23" -74°7'23"`);
+            expect(result.latitude).toBe(40.123);
+            expect(result.longitude).toBe(-74.123);
+        });
+
+        it(`returns the correct latitude and longitude for 40°7'23", -74°7'23"`, () => {
+            const parser = new Parser();
+            const result = parser.parse(`40°7'23", -74°7'23"`);
+            expect(result.latitude).toBe(40.123);
+            expect(result.longitude).toBe(-74.123);
+        });
+
+        it(`returns the correct latitude and longitude for 40°7'23",-74°7'23"`, () => {
+            const parser = new Parser();
+            const result = parser.parse(`40°7'23",-74°7'23"`);
+            expect(result.latitude).toBe(40.123);
+            expect(result.longitude).toBe(-74.123);
+        });
+
+        it(`returns the correct latitude and longitude for 40° 7' 23" -74° 7' 23"`, () => {
+            const parser = new Parser();
+            const result = parser.parse(`40° 7' 23" -74° 7' 23"`);
+            expect(result.latitude).toBe(40.123);
+            expect(result.longitude).toBe(-74.123);
+        });
+
+        it(`returns the correct latitude and longitude for 40° 7' 23", -74° 7' 23"`, () => {
+            const parser = new Parser();
+            const result = parser.parse(`40° 7' 23", -74° 7' 23"`);
+            expect(result.latitude).toBe(40.123);
+            expect(result.longitude).toBe(-74.123);
+        });
+
+        it(`returns the correct latitude and longitude for 40° 7' 23.9999", -74° 7' 23.9999"`, () => {
+            const parser = new Parser({ precision: 5 });
+            const result = parser.parse(`40° 7' 23.9999", -74° 7' 23.9999"`);
+
+            expect(result.latitude).toBe(40.12333);
+            expect(result.longitude).toBe(-74.12333);
+        });
+    });
+    // describe('test', () => {});
 });