Is TWSE open on Monday 23 January 2023?

No. TWSE is closed on Monday 23 January 2023 for Chinese New Year. It reopens on Monday 30 January 2023.

Chinese New Year

Related markets on 23 Jan 2023

TSE Tokyo	09:00–15:00
HKEX	The second day of Chinese New Year
SSE	Chinese New Year (Spring Festival)
KRX	Seollal (New Year's Day by the lunar)
NSE	09:15–15:30
SGX	Chinese New Year
ASX	10:00–16:00
NYSE	09:30–16:00
Nasdaq	09:30–16:00
TSX	09:30–16:00