diff --git a/manifest b/manifest
index 0815c54cf9..aee5a47415 100644
--- a/manifest
+++ b/manifest
@@ -1,5 +1,5 @@
-C Another\stypo\sfixed\sin\schanges.html\s(CVS\s3569)
-D 2007-01-06T13:11:36
+C Fix\sa\sround-off\serror\sin\sthe\s%W\sand\s%j\sconversions\sof\sthe\sstrftime()\sfunction.\nTicket\s#2150.\s(CVS\s3570)
+D 2007-01-08T13:07:30
 F Makefile.in a3fb1f739fd807bb3f496bd3dc41ed2b81d25e22
 F Makefile.linux-gcc 2d8574d1ba75f129aba2019f0b959db380a90935
 F README 9c4e2d6706bdcc3efdd773ce752a8cdab4f90028
@@ -62,7 +62,7 @@ F src/btree.h 061c50e37de7f50b58528e352d400cf33ead7418
 F src/build.c 02aedde724dc73295d6e9b8dc29afb5dd38de507
 F src/callback.c fd9bb39f7ff6b52bad8365617abc61c720640429
 F src/complete.c 7d1a44be8f37de125fcafd3d3a018690b3799675
-F src/date.c 9602457c49210f77f860d1919a8249a3118cd43f
+F src/date.c bc0828d380c6cd936b9d12c79cb9863f957456a3
 F src/delete.c 804384761144fe1a5035b99f4bd7d706976831bd
 F src/experimental.c 1b2d1a6cd62ecc39610e97670332ca073c50792b
 F src/expr.c 3d2cf15fd9aa6b60b67f45504782cce72cd07963
@@ -184,7 +184,7 @@ F test/corrupt.test 18c7a995b1af76a8c8600b996257f2c7b7bff083
 F test/corrupt2.test 88342570828f2b8cbbd8369eff3891f5c0bdd5ba
 F test/crash.test 5f5f155393c5685b3842fef79b6fbafa55197d75
 F test/crashtest1.c 09c1c7d728ccf4feb9e481671e29dda5669bbcc2
-F test/date.test 03195d0491772c396cefc0614a4884df8f7f3747
+F test/date.test d46b7fa0c14cb6d79fee3be070d528bbe6f01c7d
 F test/default.test 252298e42a680146b1dd64f563b95bdf088d94fb
 F test/delete.test 525a6953bc3978780cae35f3eaf1027cf4ce887d
 F test/delete2.test c06be3806ba804bc8c6f134476816080280b40e3
@@ -424,7 +424,7 @@ F www/tclsqlite.tcl bb0d1357328a42b1993d78573e587c6dcbc964b9
 F www/vdbe.tcl 87a31ace769f20d3627a64fa1fade7fed47b90d0
 F www/version3.tcl 890248cf7b70e60c383b0e84d77d5132b3ead42b
 F www/whentouse.tcl 97e2b5cd296f7d8057e11f44427dea8a4c2db513
-P be410fee681554653756d170e45ce00f0c9477ab
-R be31d9045ac23ab231d5994bfb3c796e
+P 70033a0ea41e698237e886c7ab010a360ea53bb5
+R 43d559c37983aca4dc405f7d3292901f
 U drh
-Z 7b7b3e4ca626d571342283e00310b5fb
+Z cdcea05b63e559590a8737626d19a845
diff --git a/manifest.uuid b/manifest.uuid
index 02d2dbb6b7..26629a5992 100644
--- a/manifest.uuid
+++ b/manifest.uuid
@@ -1 +1 @@
-70033a0ea41e698237e886c7ab010a360ea53bb5
\ No newline at end of file
+52067937803e6b36afc8f11c5d24059414208b77
\ No newline at end of file
diff --git a/src/date.c b/src/date.c
index bc04ad7f69..a6d1686af6 100644
--- a/src/date.c
+++ b/src/date.c
@@ -16,7 +16,7 @@
 ** sqlite3RegisterDateTimeFunctions() found at the bottom of the file.
 ** All other code has file scope.
 **
-** $Id: date.c,v 1.58 2006/09/25 18:05:04 drh Exp $
+** $Id: date.c,v 1.59 2007/01/08 13:07:30 drh Exp $
 **
 ** NOTES:
 **
@@ -840,7 +840,7 @@ static void strftimeFunc(
           y.M = 1;
           y.D = 1;
           computeJD(&y);
-          nDay = x.rJD - y.rJD;
+          nDay = x.rJD - y.rJD + 0.5;
           if( zFmt[i]=='W' ){
             int wd;   /* 0=Monday, 1=Tuesday, ... 6=Sunday */
             wd = ((int)(x.rJD+0.5)) % 7;
diff --git a/test/date.test b/test/date.test
index 8c87e5fafe..3ac407d1e6 100644
--- a/test/date.test
+++ b/test/date.test
@@ -11,7 +11,7 @@
 # This file implements regression tests for SQLite library.  The
 # focus of this file is testing date and time functions.
 #
-# $Id: date.test,v 1.17 2006/09/25 18:03:29 drh Exp $
+# $Id: date.test,v 1.18 2007/01/08 13:07:30 drh Exp $
 
 set testdir [file dirname $argv0]
 source $testdir/tester.tcl
@@ -123,6 +123,17 @@ datetest 3.11.11 {strftime('%W','2004-07-18')} 28
 datetest 3.11.12 {strftime('%W','2004-12-31')} 52
 datetest 3.11.13 {strftime('%W','2007-12-31')} 53
 datetest 3.11.14 {strftime('%W','2007-01-01')} 01
+datetest 3.11.15 {strftime('%W %j',2454109.04140970)} {02 008}
+datetest 3.11.16 {strftime('%W %j',2454109.04140971)} {02 008}
+datetest 3.11.17 {strftime('%W %j',2454109.04140972)} {02 008}
+datetest 3.11.18 {strftime('%W %j',2454109.04140973)} {02 008}
+datetest 3.11.19 {strftime('%W %j',2454109.04140974)} {02 008}
+datetest 3.11.20 {strftime('%W %j',2454109.04140975)} {02 008}
+datetest 3.11.21 {strftime('%W %j',2454109.04140976)} {02 008}
+datetest 3.11.22 {strftime('%W %j',2454109.04140977)} {02 008}
+datetest 3.11.22 {strftime('%W %j',2454109.04140978)} {02 008}
+datetest 3.11.22 {strftime('%W %j',2454109.04140979)} {02 008}
+datetest 3.11.22 {strftime('%W %j',2454109.04140980)} {02 008}
 datetest 3.12 {strftime('%Y','2003-10-31 12:34:56.432')} 2003
 datetest 3.13 {strftime('%%','2003-10-31 12:34:56.432')} %
 datetest 3.14 {strftime('%_','2003-10-31 12:34:56.432')} NULL