---
title: ".NET Timezone - Air Market"
description: "Dates and times across regions go wrong in quiet, expensive ways. This gives you guidance and copy-paste C# for converting to and from UTC, dealing with daylight saving, scheduling across regions, an…"
canonical: "https://airmarket.ai/app/dotnet-timezone"
---

[Air Market](/) / [Developer Tools](/category/devtools) / .NET Timezone

Skill by [GitHub](/@github)

# .NET Timezone

Stop guessing what time it is somewhere else in your code

## What this does

Dates and times across regions go wrong in quiet, expensive ways. This gives you guidance and copy-paste C# for converting to and from UTC, dealing with daylight saving, scheduling across regions, and finding the right zone for a place. Reach for it any time your app cares where the user is.

### Top 3 things it does for you

- Convert times between zones correctly in C#
- Find the timezone for a city or country
- Handle daylight saving without breaking scheduling

## Information

**.NET Timezone at a glance**

|  |  |
| --- | --- |
| Kind | Skill |
| Publisher | [GitHub](/@github) |
| Category | [Developer Tools](/category/devtools) |
| Works with | Agent Skills - an open standard supported by 40+ agents |
| Size | 13 KB |
| Licence | MIT |
| Repository | [github/awesome-copilot](https://github.com/github/awesome-copilot/tree/90921cc46f4e452ea379e70884d60ec25263f16a/skills/dotnet-timezone) |
| GitHub stars | 38,187 (as of Nov 2026) |
| Installs | 1,618, counted by skills.sh (Nov 2026) |

## Security report

**Verified.** AIR scanned this exact version of .NET Timezone and flagged nothing. AIR's verdict: **safe**.

**What .NET Timezone's check was run against**

|  |  |
| --- | --- |
| Commit | 90921cc46f4e452ea379e70884d60ec25263f16a |
| Content hash | d7ac8e2f191440789e8c3a36cdd02d05aa06e700abfd963cf4374e2e1f4db16b |
| Files read | [Browse the files at this exact commit](https://github.com/github/awesome-copilot/blob/90921cc46f4e452ea379e70884d60ec25263f16a/skills/dotnet-timezone/SKILL.md) |

A scan is named by the exact content it read, not by a version number. A different version is a different artifact, and nothing here applies to a version AIR has not scanned.

[Read the full security report for .NET Timezone](/security/dotnet-timezone)

## About .NET Timezone

This covers timezone handling in .NET and C#: TimeZoneInfo, DateTimeOffset, NodaTime, converting to and from UTC, and daylight saving time.

It also handles scheduling across timezones and the difference between Windows and IANA timezone identifiers, which is where cross-platform code tends to break.

If you need to know the timezone for a particular city, address, region or country, it covers that too, with C# you can copy and paste.

## What's inside

- SKILL.md - instructions
- references/code-patterns.md - reference
- references/timezone-index.md - reference

## Questions

### Is .NET Timezone safe to install?

AIR scanned this exact version of .NET Timezone and flagged nothing. AIR's verdict: safe. The verdict is named by the content that was read, at commit 90921cc46f4e, so it cannot drift onto a version nobody scanned. The full report is at https://airmarket.ai/security/dotnet-timezone.

### How do I install .NET Timezone?

Open https://airmarket.ai/app/dotnet-timezone on Air Market and use the install action: Air Market hands Claude a prompt naming this exact skill, and Claude sets it up. Source, pinned to the exact commit this listing describes: https://github.com/github/awesome-copilot/tree/90921cc46f4e452ea379e70884d60ec25263f16a/skills/dotnet-timezone. Install from that link, not the branch.

## Related on Air Market

- [More Developer Tools listings](/category/devtools)
- [Everything by GitHub](/@github)

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Canonical URL: <https://airmarket.ai/app/dotnet-timezone>