What idioms describe "working and studying day and night"?

Make night day bǐ yè zuò zhòu take night as day, day and night. Source: Tang Bai Xingjian's Biography of Li Wa: "Thinking makes students abandon all troubles and aim at learning, so that night can be a day and wealth can be accumulated."

Night divination and sun divination: divination. Describe a feast day and night. Source: Twenty-two Years of Zuo Zhuan and Zhuang Gong: "I can predict the day, I can't know the night, I dare not." ?

Stay up all night bú shě zhòu yè she: Give up. Do not give up day and night. Metaphor day and night. Source: The Analects of Confucius: "Zi Zaichuan said:' The deceased is like a husband, not giving up day and night. "

After burning ointment, Ji Gu ǐ n gā o? Succession: continue to take over; Rudder: daylight; Ointment: grease, referring to lamps and candles. Light candles or oil lamps instead of sunlight. Describe studying or working hard day and night. Source: Tang Hanyu's "Understanding of Learning": "Burn ointment and oil to continue, and stay poor for a long time."

Day and night, right? Night is connected with day. Describe stepping up work or study. Source: "Zhuangzi Gameloft": "The husband is expensive, day and night, thinking about whether it is good." Mencius Li Lou: "Think about it day and night." ?

Xue Ying Sakram called it day and night, studying tirelessly. Source: Jin family is poor, reading in the snow on winter nights; Che Yin was born in a poor family. He practiced fireflies on summer nights and studied by the dim light of fireflies. See Book of Beginners, Volume II, and Biography of Qi Yu and Jin Shu in Song Dynasty.