math.go

// Copyright 2020 the Exposure Notifications Server authors
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//      http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

// Package timeutils defines functions to close the gaps present in Golang's
// default implementation of Time.
package timeutils

import "time"

// SubtractDays subtracts the specified number of days from the given time.
func SubtractDays(t time.Time, days uint) time.Time {
	return t.Add(time.Hour * 24 * time.Duration(days) * -1)
}