fix(Google Calendar Node): Start and End defaults for event.create and calendar.availability

packages/nodes-base/nodes/Google/Calendar/CalendarDescription.ts

@@ -86,8 +86,9 @@ export const calendarFields: INodeProperties[] = [
 				resource: ['calendar'],
 			},
 		},
-		default: '',
-		description: 'Start of the interval',
+		default: '={{ $now.toISO() }}',
+		description:
+			'Start of the interval, use <a href="https://docs.n8n.io/code/cookbook/luxon/" target="_blank">expression</a> to set a date, or switch to fixed mode to choose date from widget',
 	},
 	{
 		displayName: 'End Time',
@@ -100,8 +101,9 @@ export const calendarFields: INodeProperties[] = [
 				resource: ['calendar'],
 			},
 		},
-		default: '',
-		description: 'End of the interval',
+		default: "={{ $now.plus(1, 'hour').toISO() }}",
+		description:
+			'End of the interval, use <a href="https://docs.n8n.io/code/cookbook/luxon/" target="_blank">expression</a> to set a date, or switch to fixed mode to choose date from widget',
 	},
 	{
 		displayName: 'Options',

packages/nodes-base/nodes/Google/Calendar/EventDescription.ts

@@ -114,8 +114,9 @@ export const eventFields: INodeProperties[] = [
 				resource: ['event'],
 			},
 		},
-		default: '',
-		description: 'Start time of the event',
+		default: '={{ $now.toISO() }}',
+		description:
+			'Start time of the event, use <a href="https://docs.n8n.io/code/cookbook/luxon/" target="_blank">expression</a> to set a date, or switch to fixed mode to choose date from widget',
 	},
 	{
 		displayName: 'End',
@@ -128,8 +129,9 @@ export const eventFields: INodeProperties[] = [
 				resource: ['event'],
 			},
 		},
-		default: '',
-		description: 'End time of the event',
+		default: "={{ $now.plus(1, 'hour').toISO() }}",
+		description:
+			'End time of the event, use <a href="https://docs.n8n.io/code/cookbook/luxon/" target="_blank">expression</a> to set a date, or switch to fixed mode to choose date from widget',
 	},
 	{
 		displayName: 'Use Default Reminders',

packages/nodes-base/nodes/Google/Calendar/GenericFunctions.ts

@@ -1,3 +1,4 @@
+import { DateTime } from 'luxon';
 import moment from 'moment-timezone';
 import type {
 	IDataObject,
@@ -193,3 +194,8 @@ export function addTimezoneToDate(date: string, timezone: string) {
 	if (hasTimezone(date)) return date;
 	return moment.tz(date, timezone).utc().format();
 }
+
+export function dateTimeToIso<T>(date: T): string {
+	if (date instanceof DateTime) return date.toISO();
+	return date as string;
+}

packages/nodes-base/nodes/Google/Calendar/GoogleCalendar.node.ts

@@ -18,6 +18,7 @@ import type { IEvent } from './EventInterface';
 import {
 	addNextOccurrence,
 	addTimezoneToDate,
+	dateTimeToIso,
 	encodeURIComponentOnce,
 	getCalendars,
 	getTimezones,
@@ -148,8 +149,8 @@ export class GoogleCalendar implements INodeType {
 						const calendarId = decodeURIComponent(
 							this.getNodeParameter('calendar', i, '', { extractValue: true }) as string,
 						);
-						const timeMin = this.getNodeParameter('timeMin', i) as string;
-						const timeMax = this.getNodeParameter('timeMax', i) as string;
+						const timeMin = dateTimeToIso(this.getNodeParameter('timeMin', i));
+						const timeMax = dateTimeToIso(this.getNodeParameter('timeMax', i));
 						const options = this.getNodeParameter('options', i);
 						const outputFormat = options.outputFormat || 'availability';
 						const tz = this.getNodeParameter('options.timezone', i, '', {
@@ -200,8 +201,8 @@ export class GoogleCalendar implements INodeType {
 						const calendarId = encodeURIComponentOnce(
 							this.getNodeParameter('calendar', i, '', { extractValue: true }) as string,
 						);
-						const start = this.getNodeParameter('start', i) as string;
-						const end = this.getNodeParameter('end', i) as string;
+						const start = dateTimeToIso(this.getNodeParameter('start', i));
+						const end = dateTimeToIso(this.getNodeParameter('end', i));
 						const useDefaultReminders = this.getNodeParameter('useDefaultReminders', i) as boolean;
 						const additionalFields = this.getNodeParameter('additionalFields', i);
 

packages/workflow/src/NodeHelpers.ts

@@ -1404,7 +1404,7 @@ function addToIssuesIfMissing(
 	if (
 		(nodeProperties.type === 'string' && (value === '' || value === undefined)) ||
 		(nodeProperties.type === 'multiOptions' && Array.isArray(value) && value.length === 0) ||
-		(nodeProperties.type === 'dateTime' && value === undefined) ||
+		(nodeProperties.type === 'dateTime' && (value === '' || value === undefined)) ||
 		(nodeProperties.type === 'options' && (value === '' || value === undefined)) ||
 		((nodeProperties.type === 'resourceLocator' || nodeProperties.type === 'workflowSelector') &&
 			!isValidResourceLocatorParameterValue(value as INodeParameterResourceLocator))

packages/workflow/test/NodeHelpers.test.ts

@@ -4195,4 +4195,57 @@ describe('NodeHelpers', () => {
 			});
 		}
 	});
+
+	describe('getParameterIssues, required parameters validation', () => {
+		const testNode: INode = {
+			id: '12345',
+			name: 'Test Node',
+			typeVersion: 1,
+			type: 'n8n-nodes-base.testNode',
+			position: [1, 1],
+			parameters: {},
+		};
+
+		it('Should validate required dateTime parameters if empty string', () => {
+			const nodeProperties: INodeProperties = {
+				displayName: 'Date Time',
+				name: 'testDateTime',
+				type: 'dateTime',
+				default: '',
+				required: true,
+			};
+			const nodeValues: INodeParameters = {
+				testDateTime: '',
+			};
+
+			const result = getParameterIssues(nodeProperties, nodeValues, '', testNode);
+
+			expect(result).toEqual({
+				parameters: {
+					testDateTime: ['Parameter "Date Time" is required.'],
+				},
+			});
+		});
+
+		it('Should validate required dateTime parameters if empty undefined', () => {
+			const nodeProperties: INodeProperties = {
+				displayName: 'Date Time',
+				name: 'testDateTime',
+				type: 'dateTime',
+				default: '',
+				required: true,
+			};
+			const nodeValues: INodeParameters = {
+				testDateTime: undefined,
+			};
+
+			const result = getParameterIssues(nodeProperties, nodeValues, '', testNode);
+
+			expect(result).toEqual({
+				parameters: {
+					testDateTime: ['Parameter "Date Time" is required.'],
+				},
+			});
+		});
+	});
 });