Battle Through the Heavens wasn't fixed at a fixed time because the manga's updates were decided by the author and the manga's publishing company. Usually, Battle Through the Heavens would be updated once a week or once a month, but the specific update time might vary according to the author or the publishing company. Therefore, if one wanted to know about the updates of Battle Through the Heavens, one could follow the relevant comic social media accounts or official websites, or check the relevant comic rankings to obtain the latest updates.