<ul><li>Jai and Veeru create a time-traveling app but face issues with time zones, leading to incorrect dates being displayed.</li><li>The problem was traced back to using outdated Java date-time APIs like SimpleDateFormat instead of modern java.time APIs.</li><li>By switching to java.time's DateTimeFormatter and ZoneId, they were able to fix the time zone issue and display the correct date and time.</li><li>The key takeaways include avoiding old Java date APIs, using java.time for accurate time handling, and always specifying a ZoneId when working with date and time in Java.</li></ul>

CH-02 : The Time Traveler’s Bug

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