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
- Check if dates are stored as UTC in the database (they should be)
- Make sure the frontend converts UTC dates to the user's local timezone for display
- Use a date library (date-fns, dayjs, luxon) instead of raw JavaScript Date
- Be consistent with date formats throughout the app
- Test with users in different timezones to verify correct display
Real developers can help you.
hanson1014
Full-stack developer experienced in fixing and deploying AI-generated apps from Lovable, Bolt.new, Cursor, and Replit. I specialize in debugging Supabase integration issues (auth flows, RLS policies, database connections), fixing broken deployments, resolving routing/blank screen problems, and cleaning up messy React/Vite codebases. I also build production apps with the Claude API and have shipped a Mac desktop dev tool (Nexterm from scratch. Based in Hong Kong, fast turnaround.
Kingsley Omage
Fullstack software engineer passionate about AI Agents, blockchain, LLMs.
Matthew Butler
Systems Development Engineer @ Amazon Web Services
Vlad Temian
15+ years shipping production infrastructure for startups. Former CTO at qed.builders (acquired by The Sandbox).
Cursor ambassador and agentic tooling builder.
I've scaled systems, automated deployments, and built observability tools for AI coding workflows. I specialize in taking vibe-coded apps from broken prototype to production-ready: fixing Supabase auth/RLS, Stripe integrations, deployment pipelines, and cleaning up AI-generated spaghetti.
I build tools in this space (agentprobe, claudebin, micode) and understand both sides: how AI generates code and why it breaks.
https://blog.vtemian.com/
Victor Denisov
Developer
Matthew Jordan
I've been working at a large software company named Kainos for 2 years, and mainly specialise in Platform Engineering. I regularly enjoy working on software products outside of work, and I'm a huge fan of game development using Unity. I personally enjoy Python & C# in my spare time, but I also specialise in multiple different platform-related technologies from my day job.
Pratik
SWE with 15+ years of experience building and maintaining web apps and extensive BE infrastructure
Mehdi Ben Haddou
- Founder of Chessigma (1M+ users) & many small projects
- ex Founding Engineer @Uplane (YC F25)
- ex Software Engineer @Amazon and @Booking.com
MFox
Full-stack professional senior engineer (15+years). Extensive experience in software development, qa, and IP networking.
David Olverson
Solo dev shipping production apps with AI-assisted development. I specialize in rescuing broken Lovable/Bolt/Cursor builds and taking them to production. 10+ apps shipped including SaaS CRMs, gaming platforms, real estate tools, and Discord bots. Stack: Next.js 16, TypeScript, Tailwind CSS, FastAPI, PostgreSQL, Prisma. I use Claude Code with 50+ custom skills for rapid delivery. Average turnaround: 2-4 weeks from broken prototype to production.
Describe what's wrong in plain English. No technical knowledge needed.
Get HelpFrequently 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.