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coldfusiontimezonecoldfusion-9
Aniruddha
Aniruddha

Reputation: 3317

Display Timezone (e.g. PST) in ColdFusion

I am trying to display client's timezone besides the timestamp. E.g 4:13 PST

I tried using GetTimeZoneInfo() but the only way I could think of is by getting the offset in hours and then determining through an array of hard coded values.

Other way around I found was using java.util.TimeZone class. Following is the code I have tried ---

 <cfset tz = CreateObject("java", "java.util.TimeZone")> 
<cfset tz = tz.getDefault()> 
<cfoutput>TimeZone:#tz.getDisplayName(false, 1)#</cfoutput>

This gives me output as Central Standard Time.

Any further help...

Upvotes: 0

Views: 907

Answers (2)

Walter Monroe
Walter Monroe

Reputation: 310

If you are allowing your users to select their time zone instead of getting it from the browser which potentially could be inaccurate, or they are coming from database values such as time zone per city, etc, or you simply need to extract the abbreviation from any datetime value, you can parse it out of the return value from LSDateTimeFormat() with the "long" mask.

function tzabbr(required date dttm, string tz = "", string locale = GetLocale()) {
  var str = tz == "" 
    ? LSDateTimeFormat(dttm, "long", locale)
    : LSDateTimeFormat(dttm, "long", locale, tz)
  return ListLast(str, " ")
}
// Usage Examples
dttm = Now()
tzServ = tzabbr(dttm)
tzWest = tzabbr(dttm, "US/Pacific")
tzEast = tzabbr(dttm, "US/Eastern")

https://trycf.com/gist/144aa0399ea80127a3aa1d11a74fc79b/acf2021?theme=monokai

Upvotes: 0

Adam Cameron
Adam Cameron

Reputation: 29870

The code you mention above gets the server's TZ, not the client's.

If you want the client's TZ, you should read the comments against this other, similar question. These all revolve around using the Date.getTimezoneOffset() method. This does only give you the offset from UTC though, not the more familiar GMT / BST etc.

Upvotes: 1

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