Researcher

Visa Categories

Period

Date

研究

Latest data: 2026-03

Change from Feb 2026

Date	Cert. of Eligibility	Extension of Stay	Change of Status
Mar 2026	42.4 days	30.2 days	49.4 days
Feb 2026	58.2 days	22.4 days	37.1 days
Jan 2026	62.5 days	32.5 days	60.4 days
Dec 2025	57.3 days	25.6 days	53.2 days
Nov 2025	48.7 days	33.4 days	33.5 days
Oct 2025	47.5 days	38.1 days	45.9 days
Sep 2025	65.0 days	37.1 days	39.2 days
Aug 2025	67.8 days	37.3 days	40.9 days
Jul 2025	30.8 days	36.9 days	32.3 days
Jun 2025	41.7 days	41.4 days	39.8 days
May 2025	52.3 days	37.1 days	45.2 days
Apr 2025	42.1 days	33.1 days	34.3 days
Mar 2025	38.6 days	32.6 days	50.0 days
Feb 2025	48.4 days	22.8 days	27.3 days
Jan 2025	35.5 days	N/A	N/A
Dec 2024	43.2 days	N/A	N/A
Nov 2024	28.7 days	N/A	N/A
Oct 2024	42.6 days	N/A	N/A
Sep 2024	43.3 days	N/A	N/A
Jun 2024	61.9 days	N/A	N/A
Mar 2024	63.8 days	N/A	N/A
Dec 2023	49.9 days	N/A	N/A
Sep 2023	36.6 days	N/A	N/A
Jun 2023	40.5 days	N/A	N/A
Mar 2023	46.2 days	N/A	N/A
Dec 2022	48.9 days	N/A	N/A
Sep 2022	40.8 days	N/A	N/A
Jun 2022	40.2 days	N/A	N/A
Mar 2022	47.7 days	N/A	N/A
Dec 2021	43.6 days	N/A	N/A
Sep 2021	63.3 days	N/A	N/A
Jun 2021	37.6 days	N/A	N/A
Mar 2021	28.1 days	N/A	N/A
Dec 2020	24.1 days	N/A	N/A
Sep 2020	52.3 days	N/A	N/A
Jun 2020	36.3 days	N/A	N/A
Mar 2020	22.0 days	24.1 days	34.0 days
Dec 2019	21.7 days	28.0 days	22.8 days
Sep 2019	24.0 days	25.1 days	30.7 days
Jun 2019	21.7 days	24.8 days	24.3 days
Mar 2019	13.3 days	23.4 days	26.2 days
Dec 2018	13.9 days	24.6 days	26.4 days
Sep 2018	14.8 days	24.9 days	29.8 days
Jun 2018	15.7 days	30.2 days	29.8 days
Mar 2018	16.5 days	25.2 days	27.4 days
Dec 2017	14.3 days	24.7 days	23.0 days
Sep 2017	15.7 days	25.2 days	22.2 days
Jun 2017	15.3 days	23.5 days	23.4 days