UK: Visa processing time is generally 3 weeks.

The processing time for a UK visa can vary depending on several factors, including the type of visa you are applying for, the country from which you are applying, and whether you apply online or through a visa application center (VAC). As of my last update, the general processing times for UK visas are as follows:

1. Standard Visitor Visa: The processing time for a standard visitor visa is typically within 15 working days from the date of your application. However, it can vary depending on the country from which you are applying and the time of year.

2. Tier 4 (Student) Visa: The processing time for a Tier 4 student visa can range from 2 weeks to 8 weeks, depending on whether you apply from inside or outside the UK, and whether you apply online or by post.

3. Work Visa (Tier 2, Tier 5): The processing time for work visas (Tier 2, Tier 5) can vary depending on the specific category and circumstances. Generally, it can take anywhere from a few weeks to several months.

4. Family and Settlement Visas: The processing time for family and settlement visas (e.g., spouse visa, settlement visa) can vary widely, ranging from a few weeks to several months, depending on the complexity of the application and the country from which you are applying.

5. Priority and Premium Services: If you need your visa application to be processed more quickly, you may opt for priority or premium services, which can expedite the processing time for an additional fee.

It's important to note that these are general processing times and may vary based on individual circumstances, the volume of applications, and other factors. It's advisable to check the specific processing times for your visa category and country on the official UK government website or consult with a reputable visa application center or immigration advisor for more accurate information.