MRMani Rajuinunixlytools.hashnode.dev·Jun 13 · 6 min readWhy UTC Exists (And Why GMT Isn't Enough)For a long time, I assumed UTC and GMT were basically the same thing. Whenever I saw: UTC+00:00 or GMT+00:00 I treated them as interchangeable. Most developers do. And honestly, for many application00
MRMani Rajuinunixlytools.hashnode.dev·Jun 6 · 6 min readUTC vs GMT Explained: Differences Every Developer Should KnowA few years ago, I was reviewing an API response that looked something like this: { "timezone": "GMT" } At the time, I didn't think much about it. GMT, UTC, both mean "the base timezone," right? Th00
MRMani Rajuinunixlytools.hashnode.dev·Jun 6 · 5 min readUnix Timestamp vs ISO 8601: Which Date Format Should Developers Use?If you've worked with APIs, databases, logs, or cloud applications, you've probably encountered both Unix timestamps and ISO 8601 dates. Examples: Unix Timestamp: 1749047400 ISO 8601: 2025-06-04T14:300