Fix times

Co-authored-by: slaninas <slaninas@pm.me>

backend/src/api/difficulty-adjustment.ts

@@ -47,8 +47,8 @@ class DifficultyAdjustmentApi {
     }
 
     const timeAvg = timeAvgMins * 60 * 1000 ;
-    const remainingTime = (remainingBlocks * timeAvg) + (now * 1000);
-    const estimatedRetargetDate = remainingTime + now;
+    const remainingTime = remainingBlocks * timeAvg;
+    const estimatedRetargetDate = remainingTime + now * 1000;
 
     return {
       progressPercent,