Episode 70 of The Web Development Podcast dives into a subtle but pervasive bug: web apps that ignore the user's actual time zone. Lucas walks through a real case from an e-commerce site that sent 'order ready by 5 PM' notifications at 5 PM UTC, confusing customers in New York and Los Angeles. Luna challenges him on whether libraries like moment-timezone or date-fns-tz truly solve it, and they explore the deeper issue: server-driven time handling versus client-aware rendering. They also cover the pitfalls of Intl.DateTimeFormat, the temptation to store timestamps in local time, and why most date pickers break for users in time zones with half-hour offsets like India or Nepal. The episode closes with a practical checklist: store UTC, send UTC, format on the client, and test in at least three time zones.

#TimeZone #WebDevelopment #JavaScript #DateTime #UserExperience #UTC #IntlAPI #Ecommerce #Frontend #Backend #DateFns #MomentJS #Bug #Internationalization #Technology #FexingoBusiness #BusinessPodcast #WebDev

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