fix: use UTC calendar for JDBC timestamp reads

src/main/java/dbProcs/Getter.java

@@ -21,6 +21,7 @@
 import org.json.JSONObject;
 import org.owasp.encoder.Encode;
 import servlets.Register;
+import utils.DbTime;
 import utils.ModulePlan;
 import utils.ScoreboardStatus;
 
@@ -112,7 +113,7 @@ public static String[] authUser(String ApplicationRoot, String userName, String
           badLoginCount = userResult.getInt(5);
           tempPassword = userResult.getBoolean(6);
           classId = userResult.getString(7);
-          suspendedUntil = userResult.getTimestamp(8);
+          suspendedUntil = userResult.getTimestamp(8, DbTime.UTC.get());
           loginType = userResult.getString(9);
           tempUsername = userResult.getBoolean(10);
         } else {
@@ -237,7 +238,7 @@ public static String[] authUserSSO(
             // User found if a row is in the database
             userFound = true;
             log.debug("User Found");
-            suspendedUntil = userResult.getTimestamp(1);
+            suspendedUntil = userResult.getTimestamp(1, DbTime.UTC.get());
           } else {
             userFound = false;
           }

src/main/java/utils/DbTime.java

@@ -0,0 +1,12 @@
+package utils;
+
+import java.util.Calendar;
+import java.util.TimeZone;
+
+public class DbTime {
+
+  private DbTime() {}
+
+  public static final ThreadLocal<Calendar> UTC =
+      ThreadLocal.withInitial(() -> Calendar.getInstance(TimeZone.getTimeZone("UTC")));
+}