![]() Getting the timezone name is a little more difficult, it's difficult to get it without other information.Unsent messages rafael. Thanks.Ĭonsole.log(d.toLocaleString(undefined, `) Instead, read my answer on How to initialize a JavaScript Date to a particular time zone. In general, you don't want to take this approach. This can only lead to errors, evident by the time zone shown in toString output, and will arise mathematically near any DST transitions of the local time zone and the intended target time zone. Here is another example of epoch shifting done correctly.īut in your example, you are shifting (twice in error) and then using the Date object as if it were normal and not shifted. Records live every Wednesday at 2:00pm Eastern / 11:00am Pacific / 18:00 UTC. Epoch shifting done right is what powers libraries like Moment.js. California is GMT/UTC - 8h during Standard Time California is GMT/UTC - 7h during Daylight Saving Time Daylight Saving Time Usage. Paul Thurrott of and Mary Jo Foley of All About Microsoft. The catch is: once shifted, you can't ever use any of the local time functions on that Date object, or pass it to anything else that expects the Date object to be a normal one. The timestamp is adjusted to shift the base epoch away from the normal, thus allowing one to take advantage of the Date object's UTC functions (such as getUTCHours and others). There is only one scenario where this sort of adjustment makes sense, which is a technique known as "epoch shifting". It will still use the local time zone of where it runs, for any function that requires a local time, such as. You can't change the Date object's behavior to get it to use a different time zone just by adding or subtracting an offset. Passing it this california_ms timestamp is actually just picking a different point in time. 4 ) to relate the station time at Goldstone, California to UTC ( NBS ). When the Date constructor is passed a numeric timestamp, it must be in terms of UTC. Mutual view observations were made and the time offsets were compared to those. Any function such as your getCaliforniatimezoneOffsetMS would need to have the timestamp passed in as a parameter to be effective.Īnd finally the date object let california_date: Date = new Date(california_ms) World Clock Current local time around the world. US Pacific Standard Time (PST) is 8 hours behind Greenwich Mean Time ( GMT-8 ). Time Converter Compare cities or time zones across the world. Also, unlike India, California observes daylight saving time, so part of the year the offset will be 480 (UTC-8), and part of the year the offset will be 420 (UTC-7). Time Zone Universal Time Coordinated GMT / UTC Daylight Saving Time PDT: Pacific Daylight Time (North America) Standard Time PST: Pacific Standard Time (. California is in the Pacific Time Zone in the United States of America (USA). 2:00 pm UTC / 7:00 am Los Angeles, CA, USA. 7:00 am PDT (Pacific Daylight Time) (Los Angeles, CA, USA). Baja California United States (Pacific Time Zone) California Idaho. 2:00 pm Universal Time Coordinated (UTC). UTC08:00 is an identifier for a time offset from UTC of 08:00. Now add california's timezone offset value let california_ms = utc_ms + getCaliforniaTimezoneOffsetMS()Īgain, adding an offset is incorrect. Best time for a conference call or a meeting is between 3pm-6pm in UTC which corresponds to 8am-11am in Los Angeles. Most commonly, UTC is offset by an hour, but in some cases, the offset can be a half-hour or quarter-hour. (also, the abbreviation is UTC, not UTS.) UTC offset can range from UTC-12:00 to UTC+14:00. getTime() already returns a UTC based timestamp. The local time zone is applied when functions and properties that need local time are called - not when the Date object is created.Īdd it's timezone offset value let uts_ms = india_date.getTime() + india_date.getTimezoneOffset() Keep in mind that internally, the Date object only tracks a UTC based timestamp. If it is run on a computer with a different time zone, it will reflect that time zone instead. Time zones in the contiguous USA zone and abbreviations, Standard Time offset from UTC, Daylight Saving Time offset from UTC Eastern ET, EST, EDT, UTC -5:00. You have named this variable india_date, but the Date object will only reflect India if the code is run on a computer set to India's time zone. First, let's talk about the code in your question.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |