时光遗忘了曾今
[shí guāng yí wàng le céng jīn]
This could mean 'Time has forgotten the past.' Or put another way, it reflects on how over time past events are either forgotten by others, oneself, or even history itself. '曾今(zēng jīn)' translates to 'once', 'used to be'. So, this also implies looking back at what happened before as if the time already forgot about those things, making them no longer relevant or memorable.