gcalhoras.com

What It Is

Google Calendar Hours Calculator is a lightweight web app for Google Calendar users. It uses the Google Calendar API to retrieve a user’s calendars and events, calculate the number of hours spent in calendar events, and present the results in a relatively clear format. It is more of a dedicated time-summary tool than a full project management or time-tracking SaaS product.

Core Features and Integrations

Its core function is to read calendars and events from Google Calendar and aggregate event durations. Filtering options include day, week, month, year, total, and custom date ranges, making it suitable for personal time reviews, meeting-time analysis, or rough estimates of project effort. In terms of third-party integrations, the available content only explicitly mentions the Google Calendar API; there is no visible information about integrations with Outlook, Apple Calendar, Slack, Jira, Notion, or similar tools.

Data Security and Permissions

The app’s privacy statement is fairly clear: the connection happens directly from the browser to the Google API, with no server or other service involved in caching data. Data retrieved from Google Calendar is not saved elsewhere; it is stored only in the browser’s sessionStorage and is deleted when the page is closed. As a result, users need to authorize Google again on their next visit. In terms of permissions, the app states that it only has read-only access to calendar data, which reduces the risk of accidentally modifying or deleting calendar events. However, the content does not provide information about encryption, audit logs, compliance certifications, or enterprise data-processing agreements.

Pricing, Collaboration, and Deployment

The captured content does not disclose plans, pricing, a free tier, or trial policies, nor does it explain payment methods. There is no mention of team collaboration or permission management, so it should not be viewed as a team-level timesheet approval or enterprise scheduling system. In terms of deployment, it appears to be a browser-based web app and states that it does not cache data on a server, but there is no information on whether self-hosting is supported.

Pros, Cons, and Who It’s For

Its strengths are that it is easy to use, focused in scope, requires no manual calendar-data import, and handles data in a lightweight way. Its limitations are also clear: it only calculates time around Google Calendar and lacks common enterprise-software features such as project dimensions, member management, report exports, billable hours, approval workflows, and customer support. It is best suited to individual users, freelancers, or members of small teams who rely on Google Calendar for schedule tracking and want a quick overview of how their time is spent.

Access from China

When used in mainland China, this tool depends heavily on Google Calendar and Google API authorization, so a proxy environment is usually required for stable access. If you need alternatives that can be accessed directly from within China, consider Feishu Calendar, DingTalk Calendar, or dedicated time-tracking tools such as Toggl Track, Clockify, and Harvest.