If you are an exchange student calling home from India it works to schedule the call both after school as it is early in the morning in the United States , or before school if you are the morning type of person. This timezone does not observe daylight saving time so the time difference always stay the same. You however need to pay attention to if the other time zone is observing DST as this will make a difference. IST can also refer to Irish Standard Time or Israeli Standard time, but most of the times it is India that is being referred to — just make sure to double check this before you send that calendar invite!
Eastern US and Canada, with the exception of the easternmost part of Canada. Between March and November EDT is in use, moving the clocks ahead one hour compared to in the winter time. Some higher latitude and temperate zone countries use daylight saving time for part of the year, typically by adjusting local clock time by an hour. Many land time zones are skewed toward the west of the corresponding nautical time zones. This also creates a permanent daylight saving time effect.
Coordinated Universal Time abbreviated to UTC is the primary time standard by which the world regulates clocks and time. The Date class is time-zone agnostic.
Basically, it is always based on GMT although when it is printed it uses the current system time zone to adjust it. However, Calendar is time-zone specific. See Calendar. The legacy date-time API java.
It is recommended to stop using it completely and switch to java. Instant represents an instantaneous point on the timeline. The Z in the output is the timezone designator for zero-timezone offset. Learn more about java. The java. Date object is not a real date-time object like the modern date-time types ; rather, it represents the number of milliseconds since the standard base time known as "the epoch", namely January 1, , GMT or UTC.
When you print an object of java. Date , its toString method returns the date-time in the JVM's timezone, calculated from this milliseconds value. If you need to print the date-time in a different timezone, you will need to set the timezone to SimpleDateFormat and obtain the formatted string from it.
Should you add z for time-zone pattern in your SimpleDateFormat pattern? I changed your code like this:. Maybe because of this. The correct answer by John B explains that java. Date seems to have a time zone but does not. Its toString method applies your JVM's default time zone when generating the string representation. That is one of many reasons to avoid java. Date and. Calendar classes bundled with Java.
Avoid them. Instead use either Joda-Time or the java. How are we doing? Please help us improve Stack Overflow. Take our short survey.
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