diff --git a/bin/git-standup b/bin/git-standup
index 4bc6387..d2f0ad4 100755
--- a/bin/git-standup
+++ b/bin/git-standup
@@ -63,6 +63,8 @@ fi
 # which may fail on systems lacking tput or terminfo
 set -e
 
+RANGE_SPECIFIED=
+
 while getopts "hgfBd:a:w:m:D:n:L" opt; do
     case $opt in
         h)
@@ -77,7 +79,8 @@ while getopts "hgfBd:a:w:m:D:n:L" opt; do
             fi
             ;;
         d)
-            test -n "$SINCE" && warn "-d option is conflict with -w"
+            test -n "$RANGE_SPECIFIED" && warn "-d option is conflict with -w"
+            RANGE_SPECIFIED=yes
             if [ "$OPTARG" -lt 1 ]; then
                 >&2 echo "Specify days less than one is invalid"
                 exit 1
@@ -85,10 +88,11 @@ while getopts "hgfBd:a:w:m:D:n:L" opt; do
             SINCE="$OPTARG days ago"
             ;;
         w)
-            if [ -n "$SINCE" ]; then
+            if [ -n "$RANGE_SPECIFIED" ]; then
                 warn "-w option is conflict with -d"
                 continue
             fi
+            RANGE_SPECIFIED=yes
 
             week_range=${OPTARG}
             week_start="${week_range%%-*}"
@@ -149,13 +153,26 @@ if [[ $# -gt 0 ]]; then
 fi
 
 AUTHOR=${AUTHOR:="$(git config user.name)"}
-SINCE=${SINCE:=yesterday}
-UNTIL=${UNTIL:=today}
 FETCH_LAST_COMMIT=${FETCH_LAST_COMMIT:=false}
 MAXDEPTH=${MAXDEPTH:=2}
 GIT_PRETTY_FORMAT="%Cred%h%Creset - %s %Cgreen(%cd) %C(bold blue)<%an>%Creset $GIT_PRETTY_FORMAT"
 GIT_DATE_FORMAT=${GIT_DATE_FORMAT:=relative}
 
+# Handle config of implicit week
+IMPLICIT_WEEK=$(git config --get git-extras.standup.implicit-week)
+if [[ -z "$RANGE_SPECIFIED" ]] && [[ -n "${IMPLICIT_WEEK}" ]]; then
+    week_start=${IMPLICIT_WEEK%%-*}
+    week_end=${IMPLICIT_WEEK##*-}
+    shopt -s nocasematch
+    if [[ "$week_start" == "$(LC_ALL=C date +%a)" ]]; then
+        SINCE="last $week_end"
+    fi
+    UNTIL=today
+else
+    SINCE=${SINCE:=yesterday}
+    UNTIL=${UNTIL:=today}
+fi
+
 GIT_LOG_COMMAND="git --no-pager log \
     --no-merges
     --since \"$SINCE\"
diff --git a/man/git-standup.1 b/man/git-standup.1
index 2a5ce0a..5078a8c 100644
--- a/man/git-standup.1
+++ b/man/git-standup.1
@@ -55,6 +55,13 @@ Display the commits in branch groups\.
 \-n number\-of\-commits
 .P
 Limit the number of commits displayed per group\. By default, the limitation is applied in the repository level\. For example, if you have 3 repositories under the current directory, \fBgit standup \|\.\|\.\|\. \-n 1\fR will show you 3 commits at most\. When \fB\-B\fR is specific, the limitation is applied in the branch level\. For instance, if each of your 3 repositories have 2 branches, \fBgit standup \|\.\|\.\|\. \-B \-n 1\fR will display 6 commits at most\.
+.SH "GIT CONFIGS"
+You can configure a implicit \-w \fIweekstart\-weekend\fR, which is superseded if \-w or \-d is given on the command line\. Note that the \fIweekstart\-weekend\fR must be specified, they don\'t have any default values as the \fB\-w\fR flag has\.
+.IP "" 4
+.nf
+$ git config \-\-global git\-extras\.standup\.implicit\-week "Mon\-Fri"
+.fi
+.IP "" 0
 .SH "EXAMPLES"
 This shows your commits since yesterday:
 .IP "" 4
diff --git a/man/git-standup.html b/man/git-standup.html
index e229de8..50b0a36 100644
--- a/man/git-standup.html
+++ b/man/git-standup.html
@@ -57,6 +57,7 @@
     <a href="#SYNOPSIS">SYNOPSIS</a>
     <a href="#DESCRIPTION">DESCRIPTION</a>
     <a href="#OPTIONS">OPTIONS</a>
+    <a href="#GIT-CONFIGS">GIT CONFIGS</a>
     <a href="#EXAMPLES">EXAMPLES</a>
     <a href="#AUTHOR">AUTHOR</a>
     <a href="#REPORTING-BUGS">REPORTING BUGS</a>
@@ -143,6 +144,14 @@ When <code>-B</code> is  specific, the limitation is applied in the branch level
 if each of your 3 repositories have 2 branches, <code>git standup ... -B -n 1</code> will
 display 6 commits at most.</p>
 
+<h2 id="GIT-CONFIGS">GIT CONFIGS</h2>
+
+<p>You can configure a implicit -w <var>weekstart-weekend</var>, which is superseded if -w or -d is given on the command line.
+Note that the <var>weekstart-weekend</var> must be specified, they don't have any default values as the <code>-w</code> flag has.</p>
+
+<pre><code>$ git config --global git-extras.standup.implicit-week "Mon-Fri"
+</code></pre>
+
 <h2 id="EXAMPLES">EXAMPLES</h2>
 
 <p>This shows your commits since yesterday:</p>
diff --git a/man/git-standup.md b/man/git-standup.md
index 7419aab..5956b50 100644
--- a/man/git-standup.md
+++ b/man/git-standup.md
@@ -69,6 +69,13 @@ When `-B` is  specific, the limitation is applied in the branch level. For insta
 if each of your 3 repositories have 2 branches, `git standup ... -B -n 1` will
 display 6 commits at most.
 
+## GIT CONFIGS
+
+You can configure a implicit -w <weekstart-weekend>, which is superseded if -w or -d is given on the command line.
+Note that the <weekstart-weekend> must be specified, they don't have any default values as the `-w` flag has.
+
+    $ git config --global git-extras.standup.implicit-week "Mon-Fri"
+
 ## EXAMPLES
 
 This shows your commits since yesterday: