Insights, guides, and updates about web utilities, privacy, and productivity.
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Learn what Unix timestamps are, why developers use epoch time, how to convert between timestamps and dates, handle timezones correctly, and avoid common pitfalls like the Year 2038 problem.
Understand universally unique identifiers — what UUIDs and GUIDs are, UUID v4 vs v7 differences, when to use them in databases and APIs, and potential pitfalls to avoid.
JSON vs XML — which is better for APIs? Compare strengths, weaknesses, and performance of each data format to discover which one best suits your project.