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Mert Özen's blog posts on software development, backend, frontend, and DevOps.

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.NET Core Web API 36 Angular 31 JavaScript Basics 19 JavaScript Intermediate 18 JavaScript Advanced 16 TypeScript Basics 14 TypeScript Intermediate 14 TypeScript Advanced 12 Entity Framework Core 28 Dapper 16 Git & GitHub 29 Web Security (OWASP Top 10) 21 LLM Fundamentals 20 C# Fundamentals 20 Object-Oriented Programming in C# 16 C# Collections and Generics 11 LINQ 17 Asynchronous Programming in C# 17 Advanced C# 14 C# Versions 6 Solution Patterns 22

2 posts found #timeprovider

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Software Design PART 18

Time and Time Zones: UTC Instants, Local Business Dates, DateOnly and TimeProvider

Storing time correctly means separating three concepts: event moments are UTC instants (DateTimeOffset), calendar days are DateOnly, and future local events are wall-clock time plus an IANA zone id. This post shows, with real output, how to turn a tenant's day into a UTC range, a testable clock with TimeProvider, the AT TIME ZONE traps in SQL Server and the date shift in Angular.

7 Nov 2026 15 min 1

Backend PART 16

C# Async and .NET 8: TimeProvider, ConfigureAwaitOptions, Parallel.ForAsync and CancelAsync

On .NET 6 we wrote our own IClock; on .NET 8, TimeProvider and FakeTimeProvider make a 15-minute wait take 0 ms in a test. SuppressThrowing, which waits without throwing, and its Task<T> trap, ForceYielding, Parallel.ForAsync, which takes an index range directly, and CancelAsync, which runs callbacks without blocking the caller.

7 Nov 2026 10 min 6