diff --git a/src/kyupy/__init__.py b/src/kyupy/__init__.py
index c197832..7e8c78d 100644
--- a/src/kyupy/__init__.py
+++ b/src/kyupy/__init__.py
@@ -31,15 +31,22 @@ def hr_bytes(nbytes):
 
 def hr_time(seconds):
     s = ''
+    if seconds >= 86400:
+        d = seconds // 86400
+        seconds -= d * 86400
+        s += f'{int(d)}d'
     if seconds >= 3600:
         h = seconds // 3600
         seconds -= h * 3600
         s += f'{int(h)}h'
-    if seconds >= 60 or len(s) > 0:
+    if seconds >= 60:
         m = seconds // 60
         seconds -= m * 60
-        s += f'{int(m)}m'
-    return f'{s}{int(seconds)}s'
+        if 'd' not in s:
+            s += f'{int(m)}m'
+    if 'h' not in s and 'd' not in s:
+        s += f'{int(seconds)}s'
+    return s
 
 
 class Log: