diff --git a/src/items/relative.rs b/src/items/relative.rs
index 021f580..877d37b 100644
--- a/src/items/relative.rs
+++ b/src/items/relative.rs
@@ -83,7 +83,7 @@ pub(super) fn parse(input: &mut &str) -> ModalResult<Relative> {
 fn seconds(input: &mut &str) -> ModalResult<Relative> {
     (
         opt(alt((s('+').value(1), s('-').value(-1)))),
-        sec_and_nsec,
+        s(sec_and_nsec),
         s(alpha1).verify(|s: &str| matches!(s, "seconds" | "second" | "sec" | "secs")),
         ago,
     )
@@ -138,11 +138,13 @@ mod tests {
             ("secs", Relative::Seconds(1, 0)),
             ("second ago", Relative::Seconds(-1, 0)),
             ("3 seconds", Relative::Seconds(3, 0)),
+            ("+ 3 seconds", Relative::Seconds(3, 0)),
             ("3.5 seconds", Relative::Seconds(3, 500_000_000)),
             ("-3.5 seconds", Relative::Seconds(-4, 500_000_000)),
             ("+3.5 seconds", Relative::Seconds(3, 500_000_000)),
+            ("+ 3.5 seconds", Relative::Seconds(3, 500_000_000)),
             ("3.5 seconds ago", Relative::Seconds(-4, 500_000_000)),
-            ("-3.5 seconds ago", Relative::Seconds(3, 500_000_000)),
+            ("-  3.5 seconds ago", Relative::Seconds(3, 500_000_000)),
             // Minutes
             ("minute", Relative::Minutes(1)),
             ("minutes", Relative::Minutes(1)),
diff --git a/src/lib.rs b/src/lib.rs
index 8e179ff..d24dbd9 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -307,6 +307,42 @@ mod tests {
                 assert!(parse_datetime(relative_time).is_ok());
             }
         }
+
+        #[test]
+        fn integer_seconds_offset() {
+            let dt = "0 + 0 seconds";
+            assert!(parse_datetime(dt).is_ok());
+        }
+
+        #[test]
+        fn integer_seconds_offset_spaceless() {
+            let dt = "0+0 seconds";
+            assert!(parse_datetime(dt).is_ok());
+        }
+
+        #[test]
+        fn floating_seconds_offset() {
+            let dt = "0 + 0.0 seconds";
+            assert!(parse_datetime(dt).is_ok());
+        }
+
+        #[test]
+        fn floating_seconds_offset_spaceless() {
+            let dt = "0+0.0 seconds";
+            assert!(parse_datetime(dt).is_ok());
+        }
+
+        #[test]
+        fn floating_seconds_offset_from_now() {
+            let dt = "now  +  1.5 seconds";
+            assert!(parse_datetime(dt).is_ok());
+        }
+
+        #[test]
+        fn floating_seconds_offset_from_tomorrow_spaceless() {
+            let dt = "tomorrow+1.5 seconds";
+            assert!(parse_datetime(dt).is_ok());
+        }
     }
 
     #[cfg(test)]