diff --git a/contrib/gitian-descriptors/gitian-linux.yml b/contrib/gitian-descriptors/gitian-linux.yml
index 8b2ab4ebfd..045643e297 100644
--- a/contrib/gitian-descriptors/gitian-linux.yml
+++ b/contrib/gitian-descriptors/gitian-linux.yml
@@ -41,29 +41,36 @@ script: |
     mkdir -p ${BASE_CACHE} ${SOURCES_PATH}
   fi
 
-  # Create global faketime wrappers
+  function create_global_faketime_wrappers {
   for prog in ${FAKETIME_PROGS}; do
     echo '#!/bin/bash' > ${WRAP_DIR}/${prog}
     echo "REAL=\`which -a ${prog} | grep -v ${WRAP_DIR}/${prog} | head -1\`" >> ${WRAP_DIR}/${prog}
     echo 'export LD_PRELOAD=/usr/lib/x86_64-linux-gnu/faketime/libfaketime.so.1' >> ${WRAP_DIR}/${prog}
-    echo "export FAKETIME=\"${REFERENCE_DATETIME}\"" >> ${WRAP_DIR}/${prog}
+    echo "export FAKETIME=\"$1\"" >> ${WRAP_DIR}/${prog}
     echo "\$REAL \$@" >> $WRAP_DIR/${prog}
     chmod +x ${WRAP_DIR}/${prog}
   done
+  }
 
-  # Create per-host faketime wrappers
+  function create_per-host_faketime_wrappers {
   for i in $HOSTS; do
     for prog in ${FAKETIME_HOST_PROGS}; do
         echo '#!/bin/bash' > ${WRAP_DIR}/${i}-${prog}
         echo "REAL=\`which -a ${i}-${prog} | grep -v ${WRAP_DIR}/${i}-${prog} | head -1\`" >> ${WRAP_DIR}/${i}-${prog}
         echo 'export LD_PRELOAD=/usr/lib/x86_64-linux-gnu/faketime/libfaketime.so.1' >> ${WRAP_DIR}/${i}-${prog}
-        echo "export FAKETIME=\"${REFERENCE_DATETIME}\"" >> ${WRAP_DIR}/${i}-${prog}
+        echo "export FAKETIME=\"$1\"" >> ${WRAP_DIR}/${i}-${prog}
         echo "\$REAL \$@" >> $WRAP_DIR/${i}-${prog}
         chmod +x ${WRAP_DIR}/${i}-${prog}
     done
   done
+  }
+
   export PATH=${WRAP_DIR}:${PATH}
 
+  # Faketime for depends so intermediate results are comparable
+  create_global_faketime_wrappers "2000-01-01 12:00:00"
+  create_per-host_faketime_wrappers "2000-01-01 12:00:00"
+
   cd bitcoin
   BASEPREFIX=`pwd`/depends
   # Build dependencies for each host
@@ -71,6 +78,10 @@ script: |
     make ${MAKEOPTS} -C ${BASEPREFIX} HOST="${i}"
   done
 
+  # Faketime for binaries
+  create_global_faketime_wrappers "${REFERENCE_DATETIME}"
+  create_per-host_faketime_wrappers "${REFERENCE_DATETIME}"
+
   # Create the release tarball using (arbitrarily) the first host
   ./autogen.sh
   ./configure --prefix=${BASEPREFIX}/`echo "${HOSTS}" | awk '{print $1;}'`
diff --git a/contrib/gitian-descriptors/gitian-osx.yml b/contrib/gitian-descriptors/gitian-osx.yml
index 74fc2e93ad..dbd0cedafe 100644
--- a/contrib/gitian-descriptors/gitian-osx.yml
+++ b/contrib/gitian-descriptors/gitian-osx.yml
@@ -53,29 +53,36 @@ script: |
 
   export ZERO_AR_DATE=1
 
-  # Create global faketime wrappers
+  function create_global_faketime_wrappers {
   for prog in ${FAKETIME_PROGS}; do
     echo '#!/bin/bash' > ${WRAP_DIR}/${prog}
     echo "REAL=\`which -a ${prog} | grep -v ${WRAP_DIR}/${prog} | head -1\`" >> ${WRAP_DIR}/${prog}
     echo 'export LD_PRELOAD=/usr/lib/x86_64-linux-gnu/faketime/libfaketime.so.1' >> ${WRAP_DIR}/${prog}
-    echo "export FAKETIME=\"${REFERENCE_DATETIME}\"" >> ${WRAP_DIR}/${prog}
+    echo "export FAKETIME=\"$1\"" >> ${WRAP_DIR}/${prog}
     echo "\$REAL \$@" >> $WRAP_DIR/${prog}
     chmod +x ${WRAP_DIR}/${prog}
   done
+  }
 
-  # Create per-host faketime wrappers
+  function create_per-host_faketime_wrappers {
   for i in $HOSTS; do
     for prog in ${FAKETIME_HOST_PROGS}; do
         echo '#!/bin/bash' > ${WRAP_DIR}/${i}-${prog}
         echo "REAL=\`which -a ${i}-${prog} | grep -v ${WRAP_DIR}/${i}-${prog} | head -1\`" >> ${WRAP_DIR}/${i}-${prog}
         echo 'export LD_PRELOAD=/usr/lib/x86_64-linux-gnu/faketime/libfaketime.so.1' >> ${WRAP_DIR}/${i}-${prog}
-        echo "export FAKETIME=\"${REFERENCE_DATETIME}\"" >> ${WRAP_DIR}/${i}-${prog}
+        echo "export FAKETIME=\"$1\"" >> ${WRAP_DIR}/${i}-${prog}
         echo "\$REAL \$@" >> $WRAP_DIR/${i}-${prog}
         chmod +x ${WRAP_DIR}/${i}-${prog}
     done
   done
+  }
+
   export PATH=${WRAP_DIR}:${PATH}
 
+  # Faketime for depends so intermediate results are comparable
+  create_global_faketime_wrappers "2000-01-01 12:00:00"
+  create_per-host_faketime_wrappers "2000-01-01 12:00:00"
+
   cd bitcoin
   BASEPREFIX=`pwd`/depends
 
@@ -87,6 +94,10 @@ script: |
     make ${MAKEOPTS} -C ${BASEPREFIX} HOST="${i}"
   done
 
+  # Faketime for binaries
+  create_global_faketime_wrappers "${REFERENCE_DATETIME}"
+  create_per-host_faketime_wrappers "${REFERENCE_DATETIME}"
+
   # Create the release tarball using (arbitrarily) the first host
   ./autogen.sh
   ./configure --prefix=${BASEPREFIX}/`echo "${HOSTS}" | awk '{print $1;}'`
diff --git a/contrib/gitian-descriptors/gitian-win.yml b/contrib/gitian-descriptors/gitian-win.yml
index 719ca9c232..2c035db17b 100644
--- a/contrib/gitian-descriptors/gitian-win.yml
+++ b/contrib/gitian-descriptors/gitian-win.yml
@@ -44,29 +44,31 @@ script: |
     mkdir -p ${BASE_CACHE} ${SOURCES_PATH}
   fi
 
-  # Create global faketime wrappers
+  function create_global_faketime_wrappers {
   for prog in ${FAKETIME_PROGS}; do
     echo '#!/bin/bash' > ${WRAP_DIR}/${prog}
     echo "REAL=\`which -a ${prog} | grep -v ${WRAP_DIR}/${prog} | head -1\`" >> ${WRAP_DIR}/${prog}
     echo 'export LD_PRELOAD=/usr/lib/x86_64-linux-gnu/faketime/libfaketime.so.1' >> ${WRAP_DIR}/${prog}
-    echo "export FAKETIME=\"${REFERENCE_DATETIME}\"" >> ${WRAP_DIR}/${prog}
+    echo "export FAKETIME=\"$1\"" >> ${WRAP_DIR}/${prog}
     echo "\$REAL \$@" >> $WRAP_DIR/${prog}
     chmod +x ${WRAP_DIR}/${prog}
   done
+  }
 
-  # Create per-host faketime wrappers
+  function create_per-host_faketime_wrappers {
   for i in $HOSTS; do
     for prog in ${FAKETIME_HOST_PROGS}; do
         echo '#!/bin/bash' > ${WRAP_DIR}/${i}-${prog}
         echo "REAL=\`which -a ${i}-${prog} | grep -v ${WRAP_DIR}/${i}-${prog} | head -1\`" >> ${WRAP_DIR}/${i}-${prog}
         echo 'export LD_PRELOAD=/usr/lib/x86_64-linux-gnu/faketime/libfaketime.so.1' >> ${WRAP_DIR}/${i}-${prog}
-        echo "export FAKETIME=\"${REFERENCE_DATETIME}\"" >> ${WRAP_DIR}/${i}-${prog}
+        echo "export FAKETIME=\"$1\"" >> ${WRAP_DIR}/${i}-${prog}
         echo "\$REAL \$@" >> $WRAP_DIR/${i}-${prog}
         chmod +x ${WRAP_DIR}/${i}-${prog}
     done
   done
+  }
 
-  # Create per-host linker wrapper
+  function create_per-host_linker_wrapper {
   # This is only needed for trusty, as the mingw linker leaks a few bytes of
   # heap, causing non-determinism. See discussion in https://github.com/bitcoin/bitcoin/pull/6900
   for i in $HOSTS; do
@@ -82,15 +84,21 @@ script: |
         echo '#!/bin/bash' > ${WRAP_DIR}/${i}-${prog}
         echo "REAL=\`which -a ${i}-${prog} | grep -v ${WRAP_DIR}/${i}-${prog} | head -1\`" >> ${WRAP_DIR}/${i}-${prog}
         echo 'export LD_PRELOAD=/usr/lib/x86_64-linux-gnu/faketime/libfaketime.so.1' >> ${WRAP_DIR}/${i}-${prog}
-        echo "export FAKETIME=\"${REFERENCE_DATETIME}\"" >> ${WRAP_DIR}/${i}-${prog}
+        echo "export FAKETIME=\"$1\"" >> ${WRAP_DIR}/${i}-${prog}
         echo "export COMPILER_PATH=${WRAP_DIR}/${i}" >> ${WRAP_DIR}/${i}-${prog}
         echo "\$REAL \$@" >> $WRAP_DIR/${i}-${prog}
         chmod +x ${WRAP_DIR}/${i}-${prog}
     done
   done
+  }
 
   export PATH=${WRAP_DIR}:${PATH}
 
+  # Faketime for depends so intermediate results are comparable
+  create_global_faketime_wrappers "2000-01-01 12:00:00"
+  create_per-host_faketime_wrappers "2000-01-01 12:00:00"
+  create_per-host_linker_wrapper "2000-01-01 12:00:00"
+
   cd bitcoin
   BASEPREFIX=`pwd`/depends
   # Build dependencies for each host
@@ -98,6 +106,11 @@ script: |
     make ${MAKEOPTS} -C ${BASEPREFIX} HOST="${i}"
   done
 
+  # Faketime for binaries
+  create_global_faketime_wrappers "${REFERENCE_DATETIME}"
+  create_per-host_faketime_wrappers "${REFERENCE_DATETIME}"
+  create_per-host_linker_wrapper "${REFERENCE_DATETIME}"
+
   # Create the release tarball using (arbitrarily) the first host
   ./autogen.sh
   ./configure --prefix=${BASEPREFIX}/`echo "${HOSTS}" | awk '{print $1;}'`