diff --git a/src/osm/jp/coverage/busstop/Coverage.java b/src/osm/jp/coverage/busstop/Coverage.java
index 5c9f2c8..bd42fcd 100644
--- a/src/osm/jp/coverage/busstop/Coverage.java
+++ b/src/osm/jp/coverage/busstop/Coverage.java
@@ -21,7 +21,7 @@
         File outputFileCsv = new File(dir, "coverage.busstop.csv");
         File outputFileJson = new File(dir, "coverage.busstop.json");
         
-        CoverageAll obj = new CoverageAll();
+        CoverageAll obj = new CoverageAll(new File(dir, "pbfDate.json"));
         obj.setTablename(DbBusstop.TABLE_NAME);
         obj.setData(new ArrayList<>());
         
diff --git a/src/osm/jp/coverage/fuel/Coverage.java b/src/osm/jp/coverage/fuel/Coverage.java
index 58f9b0f..80418db 100644
--- a/src/osm/jp/coverage/fuel/Coverage.java
+++ b/src/osm/jp/coverage/fuel/Coverage.java
@@ -20,7 +20,7 @@
         File outputFileCsv = new File(dir, "coverage.fuel.csv");
         File outputFileJson = new File(dir, "coverage.fuel.json");
 
-        CoverageAll obj = new CoverageAll();
+        CoverageAll obj = new CoverageAll(new File(dir, "pbfDate.json"));
         obj.setTablename(DbFuel.TABLE_NAME);
         obj.setData(new ArrayList<>());
 
diff --git a/src/osm/jp/coverage/police/Coverage2.java b/src/osm/jp/coverage/police/Coverage2.java
index 3fe8b52..6549121 100644
--- a/src/osm/jp/coverage/police/Coverage2.java
+++ b/src/osm/jp/coverage/police/Coverage2.java
@@ -25,7 +25,7 @@
         File outputFileCsv = new File(dir, "coverage.police2.csv");
         File outputFileJson = new File(dir, "coverage.police2.json");
         
-        CoverageAll obj = new CoverageAll();
+        CoverageAll obj = new CoverageAll(new File(dir, "pbfDate.json"));
         obj.setTablename(DbPolice.TABLE_NAME);
         obj.setData(new ArrayList<>());
         
diff --git a/src/osm/jp/coverage/police/Coverage4.java b/src/osm/jp/coverage/police/Coverage4.java
index f7e01f6..5b489cb 100644
--- a/src/osm/jp/coverage/police/Coverage4.java
+++ b/src/osm/jp/coverage/police/Coverage4.java
@@ -25,7 +25,7 @@
         File outputFileCsv = new File(dir, "coverage.police4.csv");
         File outputFileJson = new File(dir, "coverage.police4.json");
         
-        CoverageAll obj = new CoverageAll();
+        CoverageAll obj = new CoverageAll(new File(dir, "pbfDate.json"));
         obj.setTablename(DbPolice.TABLE_NAME);
         obj.setData(new ArrayList<>());
         
diff --git a/src/osm/jp/coverage/police/Coverage5.java b/src/osm/jp/coverage/police/Coverage5.java
index 08977f2..5b927ae 100644
--- a/src/osm/jp/coverage/police/Coverage5.java
+++ b/src/osm/jp/coverage/police/Coverage5.java
@@ -25,7 +25,7 @@
         File outputFileCsv = new File(dir, "coverage.police5.csv");
         File outputFileJson = new File(dir, "coverage.police5.json");
         
-        CoverageAll obj = new CoverageAll();
+        CoverageAll obj = new CoverageAll(new File(dir, "pbfDate.json"));
         obj.setTablename(DbPolice.TABLE_NAME);
         obj.setData(new ArrayList<>());
         
diff --git a/src/osm/jp/coverage/police/Coverage6.java b/src/osm/jp/coverage/police/Coverage6.java
index c9bef35..bcc5115 100644
--- a/src/osm/jp/coverage/police/Coverage6.java
+++ b/src/osm/jp/coverage/police/Coverage6.java
@@ -25,7 +25,7 @@
         File outputFileCsv = new File(dir, "coverage.police6.csv");
         File outputFileJson = new File(dir, "coverage.police6.json");
         
-        CoverageAll obj = new CoverageAll();
+        CoverageAll obj = new CoverageAll(new File(dir, "pbfDate.json"));
         obj.setTablename(DbPolice.TABLE_NAME);
         obj.setData(new ArrayList<>());
         
diff --git a/src/osm/jp/coverage/postoffice/Coverage.java b/src/osm/jp/coverage/postoffice/Coverage.java
index 45acd08..2c80498 100644
--- a/src/osm/jp/coverage/postoffice/Coverage.java
+++ b/src/osm/jp/coverage/postoffice/Coverage.java
@@ -20,7 +20,7 @@
         File outputFileCsv = new File(dir, "coverage.postoffice.csv");
         File outputFileJson = new File(dir, "coverage.postoffice.json");
         
-        CoverageAll obj = new CoverageAll();
+        CoverageAll obj = new CoverageAll(new File(dir, "pbfDate.json"));
         obj.setTablename(DbPostoffice.TABLE_NAME);
         obj.setData(new ArrayList<>());
         
diff --git a/src/osm/jp/postgis/CoverageAll.java b/src/osm/jp/postgis/CoverageAll.java
index e485db5..2491854 100644
--- a/src/osm/jp/postgis/CoverageAll.java
+++ b/src/osm/jp/postgis/CoverageAll.java
@@ -1,9 +1,11 @@
 package osm.jp.postgis;
 
+import java.io.BufferedReader;
 import java.io.BufferedWriter;
 import java.io.File;
 import java.io.FileNotFoundException;
 import java.io.FileOutputStream;
+import java.io.FileReader;
 import java.io.IOException;
 import java.io.OutputStreamWriter;
 import java.io.UnsupportedEncodingException;
@@ -15,6 +17,9 @@
 import java.time.LocalDate;
 import java.time.format.DateTimeFormatter;
 import java.util.ArrayList;
+import javax.json.Json;
+import javax.json.JsonObject;
+import javax.json.JsonValue;
 import jp.co.areaweb.tools.csv.CsvFile;
 import jp.co.areaweb.tools.csv.CsvRecord;
 import osm.jp.api.Japan;
@@ -52,6 +57,34 @@
     public String tableName;
     public File outputFile;
     public ArrayList<CoverageData> data;
+    public String dateStr;
+    
+    /**
+     * 
+     * @param pbfDate {"date":"2017-09-22"}
+     * @throws java.io.FileNotFoundException
+     */
+    public CoverageAll(File pbfDate) throws FileNotFoundException, IOException {
+        if (pbfDate == null) {
+            dateStr = LocalDate.now().format(DateTimeFormatter.ISO_DATE);
+        }
+        else {
+            String tmp;
+            try (FileReader fr = new FileReader(pbfDate);
+                BufferedReader br = new BufferedReader(fr)) 
+            {
+                while((tmp=br.readLine()) != null){
+                    System.out.println(tmp);
+                    JsonValue v = Json.createValue(tmp);
+                    if (v != null) {
+                        JsonObject obj = (JsonObject)v;
+                        dateStr = obj.getString("date");
+                        return;
+                    }
+                }
+            }
+        }
+    }
     
     public void setTablename(String tableName) {
         this.tableName = tableName;
@@ -190,7 +223,7 @@
             int level = 0;
             hw.write(space(level++) + "{");
             hw.newLine();
-            hw.write(space(level) + "\"timestamp\": \""+ LocalDate.now().format(DateTimeFormatter.ISO_DATE) +"\",");
+            hw.write(space(level) + "\"timestamp\": \""+ dateStr +"\",");
             hw.newLine();
             hw.write(space(level) + "\"sourcedata\": \""+ sourcedata +"\",");
             hw.newLine();