Passing epoch and tmax to translator request

modules/pubmaticBidAdapter.js

@@ -1197,6 +1197,18 @@ export const spec = {
       mergeDeep(payload, {user: commonFpd.user});
     }
 
+	// Check if bidderRequest has timeout property if present send timeout as tmax value to translator request
+    // bidderRequest has timeout property if publisher sets during calling requestBids function from page
+    // if not bidderRequest contains global value set by Prebid
+	if (bidderRequest?.timeout) {
+		payload.tmax = bidderRequest.timeout || config.getConfig('bidderTimeout');
+	  } else {
+		payload.tmax = window?.PWT?.versionDetails?.timeout;
+	  }
+
+	// Sending epoch timestamp in request.ext object
+    payload.ext.epoch = new Date().getTime();
+
     // Note: Do not move this block up
     // if site object is set in Prebid config then we need to copy required fields from site into app and unset the site object
     if (typeof config.getConfig('app') === 'object') {

test/spec/modules/pubmaticBidAdapter_spec.js

@@ -1116,6 +1116,22 @@ describe('PubMatic adapter', function () {
         expect(data.source.ext.schain).to.deep.equal(bidRequests[0].schain);
   		});
 
+		  it('Set tmax from global config if not set by requestBids method', function() {
+			let sandbox = sinon.sandbox.create();
+			sandbox.stub(config, 'getConfig').callsFake((key) => {
+				  var config = {
+				bidderTimeout: 3000
+				  };
+				  return config[key];
+			});
+			let request = spec.buildRequests(bidRequests, {
+				  auctionId: 'new-auction-id', timeout: 3000
+			});
+			let data = JSON.parse(request.data);
+			expect(data.tmax).to.deep.equal(3000);
+			sandbox.restore();
+		  });
+
       it('Set content from config, set site.content', function() {
         let sandbox = sinon.sandbox.create();
         const content = {