Common Issues general

Dates and Times Showing Wrong in My App

Dates and times in your app show incorrect values. Events show the wrong day, timestamps are off by several hours, or the same date shows differently in different parts of the app. This is confusing for users and can break time-sensitive features like bookings or deadlines.

Common Causes

  • Timezone handling — server stores UTC but the app displays UTC instead of the user's local time
  • JavaScript Date parsing inconsistencies across browsers
  • Database stores dates as strings instead of proper date types
  • Date formatting differs between server and client
  • Daylight saving time not accounted for

How to Fix It

  1. Check if dates are stored as UTC in the database (they should be)
  2. Make sure the frontend converts UTC dates to the user's local timezone for display
  3. Use a date library (date-fns, dayjs, luxon) instead of raw JavaScript Date
  4. Be consistent with date formats throughout the app
  5. Test with users in different timezones to verify correct display

Real developers can help you.

Basel Issmail Basel Issmail ’m a Senior Full-Stack Developer and Tech Lead with experience designing and building scalable web platforms. I work across the full development lifecycle, from translating business requirements into technical architecture to delivering reliable production systems. My work focuses on modern web technologies, including TypeScript, Angular, Node.js, and cloud-based architectures. I enjoy solving complex technical problems and helping teams turn product ideas and prototypes into working platforms that can grow and scale. In addition to development, I often collaborate closely with product managers, business analysts, designers, and QA teams to ensure that solutions align with both technical and business goals. I enjoy working with startups and product teams where I can contribute both as a hands-on engineer and as a technical partner in designing and delivering impactful software. Caio Rodrigues Caio Rodrigues I'm a full-stack developer focused on building practical and scalable web applications. My main experience is with **React, TypeScript, and modern frontend architectures**, where I prioritize clean code, component reusability, and maintainable project structures. I have strong experience working with **dynamic forms, state management (Redux / React Hook Form), and complex data-driven interfaces**. I enjoy solving real-world problems by turning ideas into reliable software that companies can actually use in their daily operations. Beyond coding, I care about **software quality and architecture**, following best practices for componentization, code organization, and performance optimization. I'm also comfortable working across the stack when needed, integrating APIs, handling business logic, and helping transform prototypes into production-ready systems. My goal is always to deliver solutions that are **simple, efficient, and genuinely useful for the people using them.** prajwalfullstack prajwalfullstack Hi Im a full stack developer, a vibe coded MVP to Market ready product, I'm here to help ISHANTDEEP SINGH ISHANTDEEP SINGH Senior Software Engineer with 7+ years of experience in React, JavaScript, TypeScript, Next.js, and Node.js. I’ve also worked as a tech lead for startups, owning end-to-end technical execution including architecture, development, scaling, and delivery. I bring a strong mix of hands-on coding, product thinking, and technical leadership, and I’m comfortable building products from scratch as well as improving and scaling existing systems. Richard McSorley Richard McSorley Full-Stack Software Engineer with 8+ years building high-performance applications for enterprise clients. Shipped production systems at Walmart (4,000+ stores), Cigna (20M+ users), and Arkansas Blue Cross. 5 patents in retail/supply chain tech. Currently focused on AI integrations, automation tools, and TypeScript-first architectures. Yovel Cohen Yovel Cohen I got a lot of experience in building Long-horizon AI Agents in production, Backend apps that scale to millions of users and frontend knowledge as well. Mehdi Ben Haddou Mehdi Ben Haddou - Founder of Chessigma (1M+ users) & many small projects - ex Founding Engineer @Uplane (YC F25) - ex Software Engineer @Amazon and @Booking.com Jared Hasson Jared Hasson Full time lead founding dev at a cyber security saas startup, with 10 yoe and a bachelor's in CS. Building & debugging software products is what I've spent my time on for forever AUXLE AUXLE I am a Full Stack Developer experienced in building Websites, Web apps and Cross Platform Mobile Apps for Startups and Companies. Victor Denisov Victor Denisov Developer

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Frequently Asked Questions

Events show one day off for some users. Why?

This is almost always a timezone issue. Dates stored as UTC might display as the previous or next day depending on the user's timezone.

Can a developer fix all the date issues at once?

Yes. A developer can standardize date storage (UTC), add proper timezone conversion for display, and use a consistent date formatting library throughout the app.

Related Common Issues Issues

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