diff --git a/payphone/core/formatting.py b/payphone/core/formatting.py
index c451f98..f4e5d82 100644
--- a/payphone/core/formatting.py
+++ b/payphone/core/formatting.py
@@ -212,13 +212,13 @@ def time_to_text(time_diff: timedelta) -> str:
 
     parts = []
     if days > 0:
-        parts.append(f"{days} days")
+        parts.append(f"{days} day{"s" if days != 1 else ""}")
     if hours > 0:
-        parts.append(f"{hours} hours")
+        parts.append(f"{hours} hour{"s" if hours != 1 else ""}")
     if minutes > 0:
-        parts.append(f"{minutes} mins")
+        parts.append(f"{minutes} min{"s" if minutes != 1 else ""}")
     if seconds > 0:
-        parts.append(f"{seconds} secs")
+        parts.append(f"{seconds} sec{"s" if seconds != 1 else ""}")
 
     return " ".join(parts)