Khronos LLC – ‘13F-HR’ for 3/31/07

On:  Tuesday, 4/17/07, at 2:10pm ET   ·   Effective:  4/17/07   ·   For:  3/31/07   ·   Accession #:  950159-7-515   ·   File #:  28-12093

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Quarterly Holdings and Combination Report by a Money Manager   —   Form 13F
Filing Table of Contents

Document/Exhibit                   Description                      Pages   Size 

 1: 13F-HR      Quarterly Holdings and Combination Report by a         3      7K 
                Money Manager                                                    

13F-HR
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 UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

Form 13F

 FORM 13F COVER PAGE

Report for the Calendar Year or Quarter Ended: March 31, 2007                   

Check here if Amendment [  ]; Amendment Number:                                 
This Amendment (Check only one.):    [  ] is a restatement.                 
                            [  ]adds new holdings entries.

Institutional Investment Manager Filing this Report:                            

Name:          Khronos LLC                                                      
Address:       2 Grand Central Tower                                            
140 East 45th Street                              
New York, NY 10017                                

Form 13F File Number: 028-12093                                                 

The institutional  investment  manager filing this report and the person by whom
it is signed hereby  represent  that the person signing the report is authorized
to  submit  it,  that all  information  contained  herein is true,  correct  and
complete,  and  that it is  understood  that  all  required  items,  statements,
schedules, lists, and tables, are considered integral parts of this form.       

Person Signing this Report on Behalf of Reporting Manager:                      

Name:          Rafael Mayer                                                     
Title:         Managing Member of Zen Group, LLC, the                           
managing member of Khronos LLC                    
Phone:         (212) 763-8800                                                   

Signature, Place, and Date of Signing:                                          

/s/ Rafael Mayer                    New York, NY               04/17/07         
------------------                 -------------              -----------       
[Signature]                       [City, State]                 [Date]        

Report Type (Check only one.):                                                  

[X]  13F HOLDINGS REPORT. (Check here if all holdings of this reporting manager 
are reported in this report.)                                         

[ ]  13F NOTICE. (Check here if no holdings reported are in this report, and all
holdings are reported by other reporting manager(s).)                 

[ ]  13F COMBINATION  REPORT.  (Check here if a portion of the holdings for this
     reporting  manager is  reported in this report and a portion is reported by
other reporting manager(s).)                                          

13F-HR
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                               TITLE                    VALUE      SHARES    SH/ PUT/   INVSTMT   OTHER         VOTING AUTHORITY    
NAME OF ISSUER                 OF CLASS    CUSIP       (x1000)     PRN  AMT  PRN CALL DSCRETN   MANAGERS    SOLE     SHARED   NONE  
------------------------------------------------------------------------------------------------------------------------------------
CANADIAN NATURAL RESOURCES     COM        136385101     27,595      500,000  SH        DEFINED       01      500,000                
CERIDIAN CORP                  COM        156779100     69,680    2,000,000  SH        DEFINED       01    2,000,000                
MICROSOFT CORP                 COM        594918104    102,462    3,676,437  CALL      DEFINED       01    3,676,437                

3                                                      199,737                                                                      


13F-HR
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 FORM 13F SUMMARY PAGE

Report Summary:                                                                 

Number of Other Included Managers:              1                               
Form 13F Information Table Entry Total:         3                               
Form 13F Information Table Value Total:         $199,737                        
                           (thousands)

List of Other Included Managers:                                                

Provide  a  numbered  list of the  name(s)  and Form 13F file  number(s)  of all
institutional  investment  managers  with respect to which this report is filed,
other than the manager filing this report.                                      

[If there are no entries in this list, state "NONE" and omit the column headings
and list entries.]                                                              

No.      Form 13F File Number           Name                          

01       028 -12092                      Zen Group, LLC               

Dates Referenced Herein

				Referenced-On Page
This ‘13F-HR’ Filing		Date		First		Last			Other Filings
Filed on / Effective on:		4/17/07							None on these Dates
For Period end:		3/31/07		1
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