Date utilities

Local Unix Time for Mac and iOS

Convert Unix timestamps and dates. Blissum keeps this utility local on macOS, iPhone, and iPad so you do not have to paste code, tokens, certificates, URLs, or private text into random online tools.

A private alternative to online unix timestamp converter tools

Convert Unix timestamps to dates or dates back to Unix time, with auto-detection, a Now button, and support for seconds or millisecond-scale timestamps. Blissum shows local time, timezone-aware time, UTC ISO 8601, relative time, day of year, week of year, and leap-year status. It is a local timestamp converter for logs, APIs, database values, and debugging sessions on macOS and iOS.

Blissum groups everyday code, text, data, and web utilities into one local app for Mac, iPhone, and iPad, which is especially useful where iOS has fewer native developer-tool options.

Useful for

This page intentionally covers the practical ways people describe the same workflow, especially when they want a native, local, or offline option instead of a web-based tool.

Use Unix Time locally in Blissum

Download Blissum when you want this utility alongside other local developer tools for text, code, data, web, and security workflows on macOS, iPhone, and iPad.