https://support.accountingseed.com/hc/en-us/community/posts/33959857179155--%F0%9D%9F%AD-%F0%9D%9F%B4%F0%9D%9F%B2%F0%9D%9F%B2-%F0%9D%9F%B4%F0%9D%9F%AF%F0%9D%9F%B4-%F0%9D%9F%B0%F0%9D%9F%B2%F0%9D%9F%AD%F0%9D%9F%AC-What-day-of-the-week-are-train-tickets-cheapest