A
+22 An Giang
+22
B
+24 Ba Ria-Vung Tau
+24
+18 Bac Giang
+18
+17 Bac Kan
+17
+26 Bac Lieu
+26
+18 Bac Ninh
+18
+24 Ben Tre
+24
+23 Binh Dinh
+23
+23 Binh Duong
+23
+23 Binh Phuoc
+23
+24 Binh Thuan
+24
C
+26 Ca Mau
+26
+22 Can Tho
+22
+15 Cao Bang
+15
D
+21 Da Nang (airport)
+21
+18 Dak Lak
+18
+17 Dak Nong
+17
+13 Dien Bien Phu
+13
+23 Dong Nai
+23
+22 Dong Thap
+22
G
+14 Gia Lai
+14
H
+17 Ha Giang
+17
H
+19 Ha Nam
+19
+18 Ha Noi
+18
+18 Ha Tay
+18
+17 Ha Tinh
+17
+17 Hai Duong
+17
+18 Hai Phong
+18
+22 Hau Giang
+22
+23 Ho Chi Minh City (airport)
+23
+18 Hoa Binh
+18
+19 Hung Yen
+19
K
+22 Khanh Hoa
+22
+25 Kien Giang
+25
+14 Kon Tum
+14
L
+17 Lai Chau
+17
Lam Dong
+15 Lang Son
+15
+17 Lao Cai
+17
+23 Long An
+23
N
+19 Nam Dinh
+19
+16 Nghe An
+16
+19 Ninh Binh
+19
+23 Ninh Thuan
+23
P
+23 Paracel Islands
+23
+18 Phu Tho
+18
+23 Phu Yen
+23
Q
+19 Quang Binh
+19
+21 Quang Nam
+21
+21 Quang Ngai
+21
+18 Quang Ninh
+18
+20 Quang Tri
+20
S
+22 Soc Trang
+22
+13 Son La
+13
+27 Spratly Islands
+27
T
+24 Tay Ninh
+24
+19 Thai Binh
+19
+18 Thai Nguyen
+18
+18 Thanh Hoa
+18
+20 Thua Thien-Hue
+20
+24 Tien Giang
+24
+22 Tra Vinh
+22
+18 Tuyen Quang
+18
V
+22 Vinh Long
+22
+18 Vinh Phuc
+18
Y
+18 Yen Bai
+18