diff -Nru zabbix-1.8.3.orig/create/schema/mysql.sql zabbix-1.8.3/create/schema/mysql.sql
--- zabbix-1.8.3.orig/create/schema/mysql.sql	2010-08-16 17:20:07.000000000 +0900
+++ zabbix-1.8.3/create/schema/mysql.sql	2010-08-25 14:51:57.000000000 +0900
@@ -761,7 +761,7 @@
 	sendto		varchar(100)		DEFAULT ''	NOT NULL,
 	active		integer		DEFAULT '0'	NOT NULL,
 	severity		integer		DEFAULT '63'	NOT NULL,
-	period		varchar(100)		DEFAULT '1-7,00:00-23:59'	NOT NULL,
+	period		varchar(100)		DEFAULT '1-7,00:00-24:00'	NOT NULL,
 	PRIMARY KEY (mediaid)
 ) ENGINE=InnoDB;
 CREATE INDEX media_1 on media (userid);
diff -Nru zabbix-1.8.3.orig/create/schema/oracle.sql zabbix-1.8.3/create/schema/oracle.sql
--- zabbix-1.8.3.orig/create/schema/oracle.sql	2010-08-16 17:20:07.000000000 +0900
+++ zabbix-1.8.3/create/schema/oracle.sql	2010-08-25 14:52:12.000000000 +0900
@@ -1093,7 +1093,7 @@
 	sendto		nvarchar2(100)		DEFAULT '',
 	active		number(10)		DEFAULT '0'	NOT NULL,
 	severity		number(10)		DEFAULT '63'	NOT NULL,
-	period		nvarchar2(100)		DEFAULT '1-7,00:00-23:59',
+	period		nvarchar2(100)		DEFAULT '1-7,00:00-24:00',
 	PRIMARY KEY (mediaid)
 )
 /
diff -Nru zabbix-1.8.3.orig/create/schema/postgresql.sql zabbix-1.8.3/create/schema/postgresql.sql
--- zabbix-1.8.3.orig/create/schema/postgresql.sql	2010-08-16 17:20:07.000000000 +0900
+++ zabbix-1.8.3/create/schema/postgresql.sql	2010-08-25 14:52:28.000000000 +0900
@@ -761,7 +761,7 @@
 	sendto		varchar(100)		DEFAULT ''	NOT NULL,
 	active		integer		DEFAULT '0'	NOT NULL,
 	severity		integer		DEFAULT '63'	NOT NULL,
-	period		varchar(100)		DEFAULT '1-7,00:00-23:59'	NOT NULL,
+	period		varchar(100)		DEFAULT '1-7,00:00-24:00'	NOT NULL,
 	PRIMARY KEY (mediaid)
 ) with OIDS;
 CREATE INDEX media_1 on media (userid);
diff -Nru zabbix-1.8.3.orig/create/schema/sqlite.sql zabbix-1.8.3/create/schema/sqlite.sql
--- zabbix-1.8.3.orig/create/schema/sqlite.sql	2010-08-16 17:20:07.000000000 +0900
+++ zabbix-1.8.3/create/schema/sqlite.sql	2010-08-25 14:52:39.000000000 +0900
@@ -757,7 +757,7 @@
 	sendto		varchar(100)		DEFAULT ''	NOT NULL,
 	active		integer		DEFAULT '0'	NOT NULL,
 	severity		integer		DEFAULT '63'	NOT NULL,
-	period		varchar(100)		DEFAULT '1-7,00:00-23:59'	NOT NULL,
+	period		varchar(100)		DEFAULT '1-7,00:00-24:00'	NOT NULL,
 	PRIMARY KEY (mediaid)
 );
 CREATE INDEX media_1 on media (userid);
diff -Nru zabbix-1.8.3.orig/frontends/php/actionconf.php zabbix-1.8.3/frontends/php/actionconf.php
--- zabbix-1.8.3.orig/frontends/php/actionconf.php	2010-08-16 17:19:33.000000000 +0900
+++ zabbix-1.8.3/frontends/php/actionconf.php	2010-08-25 14:53:26.000000000 +0900
@@ -634,7 +634,7 @@
 					$rowCondition[] = $cmbCondVal;
 					break;
 				case CONDITION_TYPE_TIME_PERIOD:
-					$rowCondition[] = new CTextBox('new_condition[value]', "1-7,00:00-23:59", 40);
+					$rowCondition[] = new CTextBox('new_condition[value]', "1-7,00:00-24:00", 40);
 					break;
 				case CONDITION_TYPE_TRIGGER_SEVERITY:
 					$cmbCondVal = new CComboBox('new_condition[value]');
diff -Nru zabbix-1.8.3.orig/frontends/php/include/forms.inc.php zabbix-1.8.3/frontends/php/include/forms.inc.php
--- zabbix-1.8.3.orig/frontends/php/include/forms.inc.php	2010-08-16 17:19:33.000000000 +0900
+++ zabbix-1.8.3/frontends/php/include/forms.inc.php	2010-08-25 14:53:48.000000000 +0900
@@ -2455,7 +2455,7 @@
 						S_DELAY, SPACE,
 						new CNumericBox('new_delay_flex[delay]','50',5),
 						S_PERIOD, SPACE,
-						new CTextBox('new_delay_flex[period]','1-7,00:00-23:59',27), BR(),
+						new CTextBox('new_delay_flex[period]','1-7,00:00-24:00',27), BR(),
 						new CButton('add_delay_flex',S_ADD)
 					),'form_row_r')), 'new');
 		$row->setAttribute('id', 'row_new_delay_flex');
@@ -2750,7 +2750,7 @@
 										S_DELAY, SPACE,
 										new CNumericBox("new_delay_flex[delay]","50",5),
 										S_PERIOD, SPACE,
-										new CTextBox("new_delay_flex[period]","1-7,00:00-23:59",27), BR(),
+										new CTextBox("new_delay_flex[period]","1-7,00:00-24:00",27), BR(),
 										new CButton("add_delay_flex",S_ADD)
 									));
 		$new_delay_flex_el->setAttribute('id', 'new_delay_flex_el');
diff -Nru zabbix-1.8.3.orig/frontends/php/popup_media.php zabbix-1.8.3/frontends/php/popup_media.php
--- zabbix-1.8.3.orig/frontends/php/popup_media.php	2010-08-16 17:19:33.000000000 +0900
+++ zabbix-1.8.3/frontends/php/popup_media.php	2010-08-25 14:54:06.000000000 +0900
@@ -100,7 +100,7 @@
 	$sendto		=  get_request('sendto','');
 	$mediatypeid	= get_request('mediatypeid',0);
 	$active		= get_request('active',0);
-	$period		= get_request('period','1-7,00:00-23:59');
+	$period		= get_request('period','1-7,00:00-24:00');
 
 
 	$frmMedia = new CFormTable(S_NEW_MEDIA);
diff -Nru zabbix-1.8.3.orig/src/libs/zbxdbhigh/dbschema.c zabbix-1.8.3/src/libs/zbxdbhigh/dbschema.c
--- zabbix-1.8.3.orig/src/libs/zbxdbhigh/dbschema.c	2010-08-16 17:20:08.000000000 +0900
+++ zabbix-1.8.3/src/libs/zbxdbhigh/dbschema.c	2010-08-25 14:54:42.000000000 +0900
@@ -1942,7 +1942,7 @@
  sendto varchar(100) DEFAULT '' NOT NULL,\
  active integer DEFAULT '0' NOT NULL,\
  severity integer DEFAULT '63' NOT NULL,\
- period varchar(100) DEFAULT '1-7,00:00-23:59' NOT NULL,\
+ period varchar(100) DEFAULT '1-7,00:00-24:00' NOT NULL,\
  PRIMARY KEY (mediaid)\
 ) ENGINE=InnoDB;\
 CREATE INDEX media_1 on media (userid);\
@@ -3020,7 +3020,7 @@
  sendto varchar(100) DEFAULT '' NOT NULL,\
  active integer DEFAULT '0' NOT NULL,\
  severity integer DEFAULT '63' NOT NULL,\
- period varchar(100) DEFAULT '1-7,00:00-23:59' NOT NULL,\
+ period varchar(100) DEFAULT '1-7,00:00-24:00' NOT NULL,\
  PRIMARY KEY (mediaid)\
 ) with OIDS;\
 CREATE INDEX media_1 on media (userid);\
@@ -4430,7 +4430,7 @@
  sendto nvarchar2(100) DEFAULT '',\
  active number(10) DEFAULT '0' NOT NULL,\
  severity number(10) DEFAULT '63' NOT NULL,\
- period nvarchar2(100) DEFAULT '1-7,00:00-23:59',\
+ period nvarchar2(100) DEFAULT '1-7,00:00-24:00',\
  PRIMARY KEY (mediaid)\
 )\
 /\
@@ -5636,7 +5636,7 @@
  sendto varchar(100) DEFAULT '' NOT NULL,\
  active integer DEFAULT '0' NOT NULL,\
  severity integer DEFAULT '63' NOT NULL,\
- period varchar(100) DEFAULT '1-7,00:00-23:59' NOT NULL,\
+ period varchar(100) DEFAULT '1-7,00:00-24:00' NOT NULL,\
  PRIMARY KEY (mediaid)\
 );\
 CREATE INDEX media_1 on media (userid);\
diff -Nru zabbix-1.8.3.orig/upgrades/dbpatches/1.8/oracle/patch.sql zabbix-1.8.3/upgrades/dbpatches/1.8/oracle/patch.sql
--- zabbix-1.8.3.orig/upgrades/dbpatches/1.8/oracle/patch.sql	2010-08-16 17:20:10.000000000 +0900
+++ zabbix-1.8.3/upgrades/dbpatches/1.8/oracle/patch.sql	2010-08-25 14:55:05.000000000 +0900
@@ -571,7 +571,7 @@
 alter table mappings modify newvalue                nvarchar2(64)           DEFAULT '';
 
 alter table media modify sendto          nvarchar2(100)          DEFAULT '';
-alter table media modify period          nvarchar2(100)          DEFAULT '1-7,00:00-23:59';
+alter table media modify period          nvarchar2(100)          DEFAULT '1-7,00:00-24:00';
 
 alter table media_type modify description             nvarchar2(100)          DEFAULT '';
 alter table media_type modify smtp_server             nvarchar2(255)          DEFAULT '';