The start_time param is enconded

Author: IvanDanSantos

src/main/java/com/osrm/client/Main.java

@@ -3,6 +3,7 @@
 import com.osrm.client.request.CostMatricesRequest;
 import com.osrm.client.request.GeoLocation;
 
+import java.util.Collections;
 import java.util.List;
 import java.util.ArrayList;
 
@@ -35,6 +36,8 @@ public static void main(String[] args) throws EmptyUrlException {
                     .token(token)
                     .profile(profile)
                     .returnDistanceMatrix(true)
+                    .startTime("2025-11-12T09:00:00+00:00")
+                    .customParameters(Collections.emptyMap())
                     .build();
 
             CostMatrices matrices = client.getCostMatrices(request);

src/main/java/com/osrm/client/OSRMClient.java

@@ -2,6 +2,8 @@
 
 import com.fasterxml.jackson.databind.ObjectMapper;
 
+import java.net.URLEncoder;
+import java.nio.charset.StandardCharsets;
 import java.util.ArrayList;
 import java.util.List;
 import java.util.Map;
@@ -52,7 +54,15 @@ public CostMatrices getCostMatrices(CostMatricesRequest request) {
 
     paramsString = addParamString(paramsString, "speedRate", Double.toString(request.getSpeedRate()));
     paramsString = addParamString(paramsString, "country", request.getCountry());
-    paramsString = addParamString(paramsString, "start_time", request.getStartTime());
+
+    try {
+      final String startTime = request.getStartTime();
+      if (startTime != null) {
+        paramsString = addParamString(paramsString, "start_time", URLEncoder.encode(startTime, StandardCharsets.UTF_8.toString()));
+      }
+    } catch (Exception e) {
+      throw new OSRMClientException("Error encoding start_time");
+    }
     paramsString = addParamString(paramsString, "vehicleSubType", request.getVehicleSubType());
     paramsString = addParamString(paramsString, "restriction", request.getRestrictionOption());