The US visa expiry date does not dictate the length of stay in the United States; rather, it determines the window during which one is permitted to enter the country. Kenyan travelers must prioritize their authorized stay, typically recorded on the I-94 form, which is determined by Customs and Border Protection (CBP) officers at the point of entry.

• Leaving the US before the authorized stay ends is permissible and does not invalidate a multiple-entry visa.
• Overstaying, even for a few hours, can lead to visa voidance and future entry bans under stricter rules.
• Many non-immigrant visas, such as the B1/B2 visitor visas, are often issued as multiple-entry visas valid for five years.
• Students with F or J visas may receive a "D/S" (Duration of Status) on their I-94, allowing them to stay as long as they fulfill their visit's purpose.