Zimbra REST API Reference:Get FreeBusy


Method: Get Folder  

Method: Import Message  

Method: Get Contacts  

Method: Import Contacts  

Method: Get Calendar  

Method: Get FreeBusy  

Method: Import Appointments  

Method: Get Tasks  

Method: Get Item  

Method: Get Briefcase  

Method: Get Briefcase Item  

Method: Export Mailbox  


Developer Article

Article Information

This article applies to the following ZCS versions.

ZCS 8.0 Article ZCS 8.0 ZCS 7.0 Article ZCS 7.0 ZCS 6.0 Article ZCS 6.0

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REST API Method: Get FreeBusy

Gets the calendar.



Go to Command Format

HTTP Method



ifb (Go to Response Formats)

Requires Authentication

true (Go to Authentication)


  • fmt. Optional. The response format. Defaults to ifb
  • start. Optional. The start time range (milliseconds | yyyy/dd/mm | mm/dd/yyy | relative dates ).
  • end. Optional. The end time range (milliseconds | yyyy/dd/mm | mm/dd/yyy | relative dates).

Relative Dates

Relative dates are either in the future (p/+/{not-specified}) or the past (m/-), along with a numeric value, followed by the units. For units, everything after the first character is ignored (except for the "mi" case):

  • m(onths)
  • mi(nutes)
  • d(ays)
  • w(eeks)
  • h(ours)
  • y(ears)


  • start=1day is "1 day from now"
  • end=+2days is "2 days from now"
  • start=p1day is "1 day from now"
  • end=-2days is "2 days ago"
  • start=+60mi is "60 minutes from now"
  • end=+1week is "1 week from now"
  • end=+6mon is "6 months from now"
  • start=1year is "1 year from now"

Usage Examples

Export free/busy data for all calendars that are configured to be included in free/busy data:


Export free/busy data for all calendars that are configured to be included in free/busy data for the next 60 days:


Verified Against: Zimbra Collaboration Server 7.0 Date Created: 01/16/2010
Article ID: https://wiki.zimbra.com/index.php?title=Zimbra_REST_API_Reference:Get_FreeBusy Date Modified: 2014-08-05

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