diff --git a/src/items/relative.rs b/src/items/relative.rs
index 021f580..5ed3888 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)),
@@ -150,29 +152,40 @@ mod tests {
             ("mins", Relative::Minutes(1)),
             ("10 minutes", Relative::Minutes(10)),
             ("-10 minutes", Relative::Minutes(-10)),
+            ("- 10 minutes", Relative::Minutes(-10)),
             ("10 minutes ago", Relative::Minutes(-10)),
             ("-10 minutes ago", Relative::Minutes(10)),
+            ("- 10 minutes ago", Relative::Minutes(10)),
+            ("-10 minutes ago", Relative::Minutes(10)),
+            ("- 10 minutes ago", Relative::Minutes(10)),
             // Hours
             ("hour", Relative::Hours(1)),
             ("hours", Relative::Hours(1)),
             ("10 hours", Relative::Hours(10)),
             ("+10 hours", Relative::Hours(10)),
+            ("+ 10 hours", Relative::Hours(10)),
             ("-10 hours", Relative::Hours(-10)),
+            ("- 10 hours", Relative::Hours(-10)),
             ("10 hours ago", Relative::Hours(-10)),
             ("-10 hours ago", Relative::Hours(10)),
+            ("- 10 hours ago", Relative::Hours(10)),
             // Days
             ("day", Relative::Days(1)),
             ("days", Relative::Days(1)),
             ("10 days", Relative::Days(10)),
             ("+10 days", Relative::Days(10)),
+            ("+ 10 days", Relative::Days(10)),
             ("-10 days", Relative::Days(-10)),
+            ("- 10 days", Relative::Days(-10)),
             ("10 days ago", Relative::Days(-10)),
             ("-10 days ago", Relative::Days(10)),
+            ("- 10 days ago", Relative::Days(10)),
             // Multiple days
             ("fortnight", Relative::Days(14)),
             ("fortnights", Relative::Days(14)),
             ("2 fortnights ago", Relative::Days(-28)),
             ("+2 fortnights ago", Relative::Days(-28)),
+            ("+ 2 fortnights ago", Relative::Days(-28)),
             ("week", Relative::Days(7)),
             ("weeks", Relative::Days(7)),
             ("2 weeks ago", Relative::Days(-14)),
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)]