diff --git a/README.md b/README.md
index c931b41..8de3405 100755
--- a/README.md
+++ b/README.md
@@ -45,6 +45,9 @@ Global:
  * _License/Status_
    * `fortigate_license_vdom_usage`
    * `fortigate_license_vdom_max`
+ * _WebUI/State_
+   * `fortigate_last_reboot_seconds`
+   * `fortigate_last_snapshot_seconds`
 
 Per-VDOM:
 
diff --git a/pkg/probe/probe.go b/pkg/probe/probe.go
index cf942b7..09b44cd 100644
--- a/pkg/probe/probe.go
+++ b/pkg/probe/probe.go
@@ -132,6 +132,7 @@ func (p *ProbeCollector) Probe(ctx context.Context, target string, hc *http.Clie
 		{"VPN/Ssl/Connections", probeVPNSsl},
 		{"VPN/Ssl/Stats", probeVPNSslStats},
 		{"VirtualWAN/HealthCheck", probeVirtualWANHealthCheck},
+		{"WebUI/State", probeWebUIState},
 		{"Wifi/APStatus", probeWifiAPStatus},
 		{"Wifi/Clients", probeWifiClients},
 		{"Wifi/ManagedAP", probeWifiManagedAP},
diff --git a/pkg/probe/testdata/web-ui-state.jsonnet b/pkg/probe/testdata/web-ui-state.jsonnet
new file mode 100644
index 0000000..b42d2bc
--- /dev/null
+++ b/pkg/probe/testdata/web-ui-state.jsonnet
@@ -0,0 +1,343 @@
+# api/v2/monitor/web-ui/state
+{
+  "http_method":"GET",
+  "results":{
+    "model_name":"FortiGate",
+    "model_number":"61F",
+    "hostname":"fortigate",
+    "model":"FGT61F",
+    "model_subtype":"",
+    "model_level":"low",
+    "admin_using_default_password":false,
+    "admin":{
+      "name":"prometheus",
+      "login_name":"prometheus",
+      "profile":{
+        "name":"prometheus",
+        "q_origin_key":"prometheus",
+        "scope":"global",
+        "comments":"",
+        "secfabgrp":"read",
+        "ftviewgrp":"read",
+        "authgrp":"read",
+        "sysgrp":"read",
+        "netgrp":"read",
+        "loggrp":"read",
+        "fwgrp":"read",
+        "vpngrp":"read",
+        "utmgrp":"read",
+        "wanoptgrp":"read",
+        "wifi":"read",
+        "netgrp-permission":{
+          "cfg":"none",
+          "packet-capture":"none",
+          "route-cfg":"none"
+        },
+        "sysgrp-permission":{
+          "admin":"none",
+          "upd":"none",
+          "cfg":"none",
+          "mnt":"none"
+        },
+        "fwgrp-permission":{
+          "policy":"none",
+          "address":"none",
+          "service":"none",
+          "schedule":"none",
+          "others":"none"
+        },
+        "loggrp-permission":{
+          "config":"none",
+          "data-access":"none",
+          "report-access":"none",
+          "threat-weight":"none"
+        },
+        "utmgrp-permission":{
+          "antivirus":"none",
+          "ips":"none",
+          "webfilter":"none",
+          "emailfilter":"none",
+          "data-loss-prevention":"none",
+          "file-filter":"none",
+          "application-control":"none",
+          "icap":"none",
+          "voip":"none",
+          "waf":"none",
+          "dnsfilter":"none",
+          "endpoint-control":"none"
+        },
+        "admintimeout-override":"disable",
+        "admintimeout":10,
+        "system-diagnostics":"enable"
+      },
+      "global_admin":true,
+      "super_admin":false,
+      "ignore_release_overview":"",
+      "ignore_invalid_signature_version":"",
+      "dashboard_template":"",
+      "guest_admin":false,
+      "fmg_admin":false,
+      "sso_login_type":"none",
+      "remote_admin":false,
+      "pki_admin":false,
+      "vdoms":[
+        "",
+        "main",
+        "root"
+      ],
+      "vdom_info":{
+        "main":{
+          "central_nat_enabled":true,
+          "transparent_mode":false,
+          "ngfw_mode":"profile-based",
+          "features":{
+            "gui-icap":false,
+            "gui-implicit-policy":true,
+            "gui-dns-database":true,
+            "gui-load-balance":false,
+            "gui-multicast-policy":false,
+            "gui-dos-policy":false,
+            "gui-object-colors":true,
+            "gui-voip-profile":false,
+            "gui-ap-profile":true,
+            "gui-security-profile-group":false,
+            "gui-local-in-policy":true,
+            "gui-local-reports":true,
+            "gui-explicit-proxy":true,
+            "gui-dynamic-routing":true,
+            "gui-sslvpn-personal-bookmarks":false,
+            "gui-sslvpn-realms":false,
+            "gui-policy-based-ipsec":false,
+            "gui-threat-weight":true,
+            "gui-spamfilter":false,
+            "gui-file-filter":true,
+            "gui-application-control":true,
+            "gui-ips":true,
+            "gui-endpoint-control":true,
+            "gui-endpoint-control-advanced":false,
+            "gui-dhcp-advanced":true,
+            "gui-vpn":true,
+            "gui-wireless-controller":false,
+            "gui-switch-controller":false,
+            "gui-fortiap-split-tunneling":false,
+            "gui-traffic-shaping":true,
+            "gui-wan-load-balancing":false,
+            "gui-antivirus":false,
+            "gui-webfilter":false,
+            "gui-videofilter":true,
+            "gui-dnsfilter":true,
+            "gui-waf-profile":false,
+            "gui-advanced-policy":true,
+            "gui-allow-unnamed-policy":true,
+            "gui-email-collection":false,
+            "gui-multiple-interface-policy":true,
+            "gui-policy-disclaimer":false,
+            "gui-ztna":false
+          },
+          "virtual_wire_pair_count":0,
+          "is_management_vdom":false,
+          "log_device_state":{
+            "memory":{
+              "is_available":true,
+              "is_enabled":false,
+              "is_default":false,
+              "is_ha_supported":true
+            },
+            "disk":{
+              "is_available":true,
+              "is_enabled":true,
+              "is_loggable":true,
+              "num_ssds_available":1,
+              "disabled_by_default":false,
+              "is_ha_supported":true,
+              "is_fortiview_supported":true,
+              "fortiview_weekly_data":false
+            },
+            "fortianalyzer":{
+              "is_available":true,
+              "is_enabled":false,
+              "overrides_global_faz":false
+            },
+            "fortianalyzer_cloud":{
+              "is_available":false,
+              "is_enabled":false,
+              "overrides_global_faz_cloud":false
+            },
+            "forticloud":{
+              "is_available":true,
+              "is_enabled":true,
+              "is_faz_cloud":false
+            }
+          },
+          "log_device_default":"forticloud",
+          "resolve_hostnames":true
+        },
+        "root":{
+          "central_nat_enabled":false,
+          "transparent_mode":false,
+          "ngfw_mode":"profile-based",
+          "features":{
+            "gui-icap":false,
+            "gui-implicit-policy":true,
+            "gui-dns-database":false,
+            "gui-load-balance":false,
+            "gui-multicast-policy":false,
+            "gui-dos-policy":false,
+            "gui-object-colors":true,
+            "gui-voip-profile":false,
+            "gui-ap-profile":true,
+            "gui-security-profile-group":false,
+            "gui-local-in-policy":true,
+            "gui-local-reports":true,
+            "gui-explicit-proxy":false,
+            "gui-dynamic-routing":true,
+            "gui-threat-weight":false,
+            "gui-spamfilter":false,
+            "gui-file-filter":true,
+            "gui-application-control":true,
+            "gui-ips":true,
+            "gui-endpoint-control":true,
+            "gui-endpoint-control-advanced":false,
+            "gui-dhcp-advanced":true,
+            "gui-vpn":false,
+            "gui-wireless-controller":false,
+            "gui-switch-controller":false,
+            "gui-fortiap-split-tunneling":false,
+            "gui-traffic-shaping":true,
+            "gui-wan-load-balancing":false,
+            "gui-antivirus":false,
+            "gui-webfilter":false,
+            "gui-videofilter":true,
+            "gui-dnsfilter":false,
+            "gui-waf-profile":false,
+            "gui-fortiextender-controller":false,
+            "gui-advanced-policy":true,
+            "gui-allow-unnamed-policy":true,
+            "gui-email-collection":false,
+            "gui-multiple-interface-policy":true,
+            "gui-policy-disclaimer":false,
+            "gui-ztna":false
+          },
+          "virtual_wire_pair_count":0,
+          "is_management_vdom":true,
+          "log_device_state":{
+            "memory":{
+              "is_available":true,
+              "is_enabled":false,
+              "is_default":false,
+              "is_ha_supported":true
+            },
+            "disk":{
+              "is_available":true,
+              "is_enabled":true,
+              "is_loggable":true,
+              "num_ssds_available":1,
+              "disabled_by_default":false,
+              "is_ha_supported":true,
+              "is_fortiview_supported":true,
+              "fortiview_weekly_data":false
+            },
+            "fortianalyzer":{
+              "is_available":true,
+              "is_enabled":false,
+              "overrides_global_faz":false
+            },
+            "fortianalyzer_cloud":{
+              "is_available":false,
+              "is_enabled":false,
+              "overrides_global_faz_cloud":false
+            },
+            "forticloud":{
+              "is_available":true,
+              "is_enabled":true,
+              "is_faz_cloud":false
+            }
+          },
+          "log_device_default":"forticloud",
+          "resolve_hostnames":true
+        }
+      }
+    },
+    "fext_enabled":true,
+    "fext_vlan_mode":false,
+    "snapshot_utc_time":1659857566000,
+    "utc_last_reboot":1657116965000,
+    "time_zone_offset":0,
+    "time_zone_text":"(GMT) Greenwich Mean Time",
+    "time_zone_db_name":"Etc\/GMT",
+    "centrally_managed":false,
+    "fortimanager_backup_mode":false,
+    "fips_cc_enabled":false,
+    "fips_ciphers_enabled":false,
+    "vdom_mode":"multi-vdom",
+    "management_vdom":"root",
+    "conserve_mode":false,
+    "image_sign_status":"certified",
+    "bios_security_level":1,
+    "need_fs_check":false,
+    "carrier_mode":false,
+    "has_hyperscale_license":false,
+    "csf_enabled":false,
+    "csf_group_name":"",
+    "csf_upstream_ip":"",
+    "csf_sync_mode":"default",
+    "csf_object_sync_mode":"local",
+    "ha_mode":0,
+    "is_ha_master":1,
+    "ngfw_mode":"profile-based",
+    "forced_low_crypto":false,
+    "has_log_disk":true,
+    "has_local_config_revisions":true,
+    "lenc_mode":false,
+    "usg_mode":false,
+    "admin_https_redirection":true,
+    "config_save_mode":"automatic",
+    "debug_supported_daemons":[
+      "node",
+      "httpsd",
+      "cmdb",
+      "miglogd",
+      "csfd",
+      "sslvpnd"
+    ],
+    "is_vm":false,
+    "theme":"jade",
+    "language_code":"en",
+    "cmgmt_override_cookie_name":"REDACTED",
+    "ccsrf_token_cookie_name":"REDACTED",
+    "file_downloading_cookie_name":"REDACTED",
+    "autoscale_config_rec_override_cookie_name":"REDACTED",
+    "initial_vdom":"",
+    "timeout_minutes":60,
+    "features":{
+      "gui-ipv6":true,
+      "gui-replacement-message-groups":false,
+      "gui-local-out":false,
+      "gui-certificates":true,
+      "gui-custom-language":false,
+      "gui-wireless-opensecurity":false,
+      "gui-display-hostname":false,
+      "gui-fortigate-cloud-sandbox":false,
+      "gui-firmware-upgrade-warning":true,
+      "gui-allow-default-hostname":false,
+      "gui-forticare-registration-setup-warning":true,
+      "gui-cdn-usage":true,
+      "switch-controller":true,
+      "wireless-controller":true,
+      "fortiextender":true,
+      "fortitoken-cloud-service":true
+    },
+    "date_format":'yyyy\/MM\/dd',
+    "date_format_device":"system",
+    "security_rating_result_submission":true,
+    "security_rating_run_on_schedule":true
+  },
+  "vdom":"main",
+  "path":"web-ui",
+  "name":"state",
+  "action":"",
+  "status":"success",
+  "serial":"FGT61FT000000000",
+  "version":"v7.0.6",
+  "build": 366
+}
diff --git a/pkg/probe/webui_state.go b/pkg/probe/webui_state.go
new file mode 100644
index 0000000..59c28c5
--- /dev/null
+++ b/pkg/probe/webui_state.go
@@ -0,0 +1,45 @@
+package probe
+
+import (
+	"log"
+
+	"github.com/bluecmd/fortigate_exporter/pkg/http"
+	"github.com/prometheus/client_golang/prometheus"
+)
+
+func probeWebUIState(c http.FortiHTTP, meta *TargetMetadata) ([]prometheus.Metric, bool) {
+	var (
+		mRebootTime = prometheus.NewDesc(
+			"fortigate_last_reboot_seconds",
+			"Last system reboot epoch time in seconds",
+			nil, nil,
+		)
+		mSnapshotTime = prometheus.NewDesc(
+			"fortigate_last_snapshot_seconds",
+			"Last snapshot epoch time in seconds",
+			nil, nil,
+		)
+	)
+
+	type WebUIState struct {
+		SnapshotUTCTime float64 `json:"snapshot_utc_time"`
+		UTCLastReboot   float64 `json:"utc_last_reboot"`
+	}
+
+	type webuiState struct {
+		Results WebUIState
+	}
+
+	var state webuiState
+
+	if err := c.Get("api/v2/monitor/web-ui/state", "", &state); err != nil {
+		log.Printf("Error: %v", err)
+		return nil, false
+	}
+
+	m := []prometheus.Metric{
+		prometheus.MustNewConstMetric(mRebootTime, prometheus.GaugeValue, state.Results.UTCLastReboot/1000),
+		prometheus.MustNewConstMetric(mSnapshotTime, prometheus.GaugeValue, state.Results.SnapshotUTCTime/1000),
+	}
+	return m, true
+}
diff --git a/pkg/probe/webui_state_test.go b/pkg/probe/webui_state_test.go
new file mode 100755
index 0000000..53450d3
--- /dev/null
+++ b/pkg/probe/webui_state_test.go
@@ -0,0 +1,31 @@
+package probe
+
+import (
+	"strings"
+	"testing"
+
+	"github.com/prometheus/client_golang/prometheus"
+	"github.com/prometheus/client_golang/prometheus/testutil"
+)
+
+func TestWebUIState(t *testing.T) {
+	c := newFakeClient()
+	c.prepare("api/v2/monitor/web-ui/state", "testdata/web-ui-state.jsonnet")
+	r := prometheus.NewPedanticRegistry()
+	if !testProbe(probeWebUIState, c, r) {
+		t.Errorf("probeWebUIState() returned non-success")
+	}
+
+	em := `
+	# HELP fortigate_last_reboot_seconds Last system reboot epoch time in seconds
+	# TYPE fortigate_last_reboot_seconds gauge
+	fortigate_last_reboot_seconds 1.657116965e+09
+	# HELP fortigate_last_snapshot_seconds Last snapshot epoch time in seconds
+	# TYPE fortigate_last_snapshot_seconds gauge
+	fortigate_last_snapshot_seconds 1.659857566e+09
+	`
+
+	if err := testutil.GatherAndCompare(r, strings.NewReader(em)); err != nil {
+		t.Fatalf("metric compare: err %v", err)
+	}
+}