diff --git a/system_time.go b/system_time.go
new file mode 100644
index 0000000..dde62ec
--- /dev/null
+++ b/system_time.go
@@ -0,0 +1,30 @@
+package retailcrm
+
+import (
+	"fmt"
+	"strings"
+	"time"
+)
+
+type SystemTime time.Time
+
+const systemTimeLayout = "2006-01-02 15:04:05"
+
+// UnmarshalJSON parses time.Time from system format.
+func (st *SystemTime) UnmarshalJSON(b []byte) (err error) {
+	s := strings.Trim(string(b), `"`)
+	nt, err := time.Parse(systemTimeLayout, s)
+	*st = SystemTime(nt)
+	return
+}
+
+// MarshalJSON will marshal time.Time to system format.
+func (st SystemTime) MarshalJSON() ([]byte, error) {
+	return []byte(st.String()), nil
+}
+
+// String returns the time in the custom format
+func (st *SystemTime) String() string {
+	t := time.Time(*st)
+	return fmt.Sprintf("%q", t.Format(systemTimeLayout))
+}
diff --git a/types.go b/types.go
index 7640199..af215cb 100644
--- a/types.go
+++ b/types.go
@@ -1358,6 +1358,43 @@ type Activity struct {
 	Freeze bool `json:"freeze"`
 }
 
+type ChatCustomerOnline struct {
+	LastOnline SystemTime `json:"lastOnline"`
+}
+
+type ChatVisitsResponse struct {
+	LastVisit   ChatLastVisit `json:"lastVisit"`
+	IP          string        `json:"ip"`
+	CountVisits uint          `json:"countVisits"`
+	ChatDevice  ChatDevice    `json:"chatDevice"`
+	ChatUTM     *ChatUTM      `json:"chatUtm,omitempty"`
+}
+
+type ChatLastVisit struct {
+	Source    string            `json:"source"`
+	Duration  uint              `json:"duration"`
+	CreatedAt SystemTime        `json:"createdAt"`
+	EndedAt   *SystemTime       `json:"endedAt,omitempty"`
+	Pages     []ChatVisitedPage `json:"pages"`
+}
+
+type ChatVisitedPage struct {
+	DateTime SystemTime `json:"dateTime"`
+	URL      string     `json:"url"`
+}
+
+type ChatDevice struct {
+	Lang    string `json:"lang"`
+	Browser string `json:"browser"`
+	OS      string `json:"os"`
+}
+
+type ChatUTM struct {
+	Source   string `json:"source"`
+	Medium   string `json:"medium"`
+	Campaign string `json:"campaign"`
+}
+
 // Tag struct.
 type Tag struct {
 	Name     string `json:"name,omitempty"`