todo-server/server/ajax/form/cron.go

package form

import (
	"time"

	"github.com/robfig/cron/v3"
)

type Cron string

func (c Cron) Next(since time.Time) time.Time {
	schedule, err := cron.ParseStandard(string(c))
	if err != nil {
		return time.Time{}
	}
	return schedule.Next(since)
}