diff --git a/src/modules/host/dto/createActivity.schema.ts b/src/modules/host/dto/createActivity.schema.ts
index 1477326..0c27507 100644
--- a/src/modules/host/dto/createActivity.schema.ts
+++ b/src/modules/host/dto/createActivity.schema.ts
@@ -110,7 +110,7 @@ export const CreateActivityDto = z.object({
 
   /* DURATION / ENERGY */
   energyLevelXid: z.number().int().nullable().optional(),
-  activityDurationMins: z.number().int().nullable().optional(),
+  durationDays:z.number().int().optional(),
   durationHours: z.number().int().optional(),
   durationMins: z.number().int().optional(),
 
diff --git a/src/modules/host/services/host.service.ts b/src/modules/host/services/host.service.ts
index 48b8fe8..ba9b6b0 100644
--- a/src/modules/host/services/host.service.ts
+++ b/src/modules/host/services/host.service.ts
@@ -2311,6 +2311,16 @@ export class HostService {
       };
     };
 
+    /* =====================================================
+     * DURATION CONVERSION
+     * ===================================================== */
+    const durationDays = Number(payload.durationDays ?? 0);
+    const durationHours = Number(payload.durationHours ?? 0);
+    const durationMins = Number(payload.durationMins ?? 0);
+
+    payload.activityDurationMins =
+      durationDays * 24 * 60 + durationHours * 60 + durationMins;
+
     /* =====================================================
      * BASIC GUARDS
      * ===================================================== */