天地堂 [－－－]

Jyutping tin1 dei6 tong4
Pinyin tiān dì táng

Definitions (粵典–words.hk)
  1. 名詞、潮語、術語
    大學生​用語​，​即​係​朝​早同​晏​晝先​有堂​，​中間​一大​段​時間​冇​堂上​；​有​時會​簡稱​做​「​天地​」
    (university student slang) to have a class in the early morning and then to have to wait for the next class in the late afternoon, literally "sky and earth lessons"
    • 我寧願神柱有day off，都好過硬食天地堂。
      我宁愿神柱有day off，都好过硬食天地堂。
      ngo5 ning4 jyun2 san4 cyu5 jau5 dei1 !of1, dou1 hou2 gwo3 ngaang6 sik6 tin1 dei6 tong4.
      I would rather have a tight schedule from day to night with at least a day off, than have to attend classes separately in the early morning and the late afternoon.
Definitions (Wiktionary)
  1. noun, Cantonese, Hong-Kong
    describes a timetable arrangement where one has classes in the early morning, followed by classes in the late afternoon or evening, with a large gap between the two.

天地堂 [－－－]

Jyutping tin1 dei6 tong4
Pinyin tiān1di táng

Definitions (CC-CANTO)
  1. to have lessons very far apart with a big break in between, such as one early in the morning and the next one not till late in the afternoon [colloquial]
Examples (粵典–words.hk)
  1. Cantonese
    我宁愿神柱有day off，都好过硬食天地堂。
    我寧願神柱有day off，都好過硬食天地堂。
    ngo5 ning4 jyun2 san4 cyu5 jau5 dei1 !of1, dou1 hou2 gwo3 ngaang6 sik6 tin1 dei6 tong4.
    • I would rather have a tight schedule from day to night with at least a day off, than have to attend classes separately in the early morning and the late afternoon.