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.
Jaime Orts-Caroff
I'm a Senior Android developer, open to work in various fields
rayush33
JavaScript (React.js, React Native, Node.js) Developer with demonstrated industry experience of 4+ years, actively looking for opportunities to hone my skills as well as help small-scale business owners with solutions to technical problems
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I am a Strategic Engineering Leader with over 8 years of experience building high-availability enterprise systems and scaling high-performing technical teams. My focus is on bridging the gap between complex technology and business growth.
Core Expertise:
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I thrive on "out-of-the-box" thinking to solve complex technical bottlenecks and am always looking for ways to use automation to improve business productivity.
legrab
I'll fill this later
Sage Fulcher
Hey I'm Sage! Im a Boston area software engineer who grew up in South Florida. Ive worked at a ton of cool places like a telehealth kidney care startup that took part in a billion dollar merger (Cricket health/Interwell health), a boutique design agency where I got to work on a ton of exciting startups including a photography education app, a collegiate Esports league and more (Philosophie), a data analytics as a service startup in Cambridge (MA) as well as at Phillips and MIT Lincoln Lab where I designed and developed novel network security visualizations and analytics. I've been writing code and furiously devoted to using computers to make people’s lives easier for about 17 years. My degree is in making computers make pretty lights and sounds. Outside of work I love hip hop, the Celtics, professional wrestling, magic the gathering, photography, drumming, and guitars (both making and playing them)
Stanislav Prigodich
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I’m a Full-Stack Developer with over 10 years of experience building modern web and mobile applications. I enjoy working across the full product lifecycle — turning ideas into real, well-built products that are intuitive for users and scalable for businesses.
I particularly enjoy building mobile apps, modern web platforms, and solving complex technical problems in a way that keeps systems clean, reliable, and easy to maintain.
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Taufan
I’m a product-focused engineer and tech leader who builds scalable systems and turns ideas into production-ready platforms.
Over the past years, I’ve worked across startups and fast-moving teams, leading backend architecture, improving system reliability, and shipping products used by thousands of users. My strength is not just writing code — but connecting product vision, technical execution, and business impact.
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.