diff --git a/pkg/responses/httpResponse.go b/pkg/responses/httpResponse.go
new file mode 100644
index 0000000..5c49482
--- /dev/null
+++ b/pkg/responses/httpResponse.go
@@ -0,0 +1,25 @@
+package responses
+
+type DefaultErrorResponse struct {
+	Error string `json:"error" example:"error"`
+}
+
+type BadRequest struct {
+	Error string `json:"error" example:"error"`
+}
+
+type NotFound struct {
+	Error string `json:"error" example:"error"`
+}
+
+type Unauthorized struct {
+	Error string `json:"error" example:"error"`
+}
+
+type Forbidden struct {
+	Error string `json:"error" example:"error"`
+}
+
+type InternalServerError struct {
+	Error string `json:"error" example:"error"`
+}
diff --git a/pkg/utils/cpus.go b/pkg/utils/cpus.go
new file mode 100644
index 0000000..cc739b7
--- /dev/null
+++ b/pkg/utils/cpus.go
@@ -0,0 +1,11 @@
+package utils
+
+import "runtime"
+
+type cpuUtil interface {
+	NumCPU() int
+}
+
+func (h *Handler) NumCPU() int {
+	return runtime.NumCPU()
+}
diff --git a/pkg/utils/handler.go b/pkg/utils/handler.go
new file mode 100644
index 0000000..1e57cde
--- /dev/null
+++ b/pkg/utils/handler.go
@@ -0,0 +1,8 @@
+package utils
+
+type Handler struct {
+}
+
+func New() *Handler {
+	return &Handler{}
+}
diff --git a/pkg/utils/interface.go b/pkg/utils/interface.go
new file mode 100644
index 0000000..159ca57
--- /dev/null
+++ b/pkg/utils/interface.go
@@ -0,0 +1,6 @@
+package utils
+
+type Utils interface {
+	timeUtil
+	cpuUtil
+}
diff --git a/pkg/utils/time.go b/pkg/utils/time.go
new file mode 100644
index 0000000..9fa6b59
--- /dev/null
+++ b/pkg/utils/time.go
@@ -0,0 +1,29 @@
+package utils
+
+import (
+	"database/sql"
+	"time"
+)
+
+type timeUtil interface {
+	TimeNowUTC() time.Time
+	DeletedNullTime() sql.NullTime
+	NullTimeNowUTC() sql.NullTime
+	NullTimeFromNow(time.Time) sql.NullTime
+}
+
+func (h *Handler) TimeNowUTC() time.Time {
+	return time.Now().UTC()
+}
+
+func (h *Handler) DeletedNullTime() sql.NullTime {
+	return sql.NullTime{Time: time.Time{}, Valid: false}
+}
+
+func (h *Handler) NullTimeNowUTC() sql.NullTime {
+	return sql.NullTime{Time: h.TimeNowUTC(), Valid: true}
+}
+
+func (h *Handler) NullTimeFromNow(time.Time) sql.NullTime {
+	return sql.NullTime{Time: h.TimeNowUTC(), Valid: true}
+}