1 files changed, 6 insertions, 2 deletions

diff --git a/src/Combobox.jsx b/src/Combobox.jsx
index 18fd54c..19fbd19 100644
--- a/src/Combobox.jsx
+++ b/src/Combobox.jsx
@@ -90,8 +90,12 @@ class Combobox extends Component {
       hourOptionsAdj = [12].concat(hourOptions.filter(h => h < 12 && h > 0));
       hourAdj = (hour % 12) || 12;
 
-      if (!this.isAM() && Array.isArray(disabledOptions)) {
-        disabledOptions = disabledOptions.map(h => h - 12);
+      if (Array.isArray(disabledOptions)) {
+        if (this.isAM()) {
+          disabledOptions = disabledOptions.filter(h => h < 12).map(h => (h === 0 ? 12 : h));
+        } else {
+          disabledOptions = disabledOptions.map(h => (h === 12 ? 12 : h - 12));
+        }
       }
     } else {
       hourOptionsAdj = hourOptions;