美国的大学研究生以上学历申请的截止日期根据学校和专业有不同的截止日期。一个学校学校的不同专业对于博士申请提交的截止日期大部分集中在每年的12月到第二年2月这个时间段。而发放录取通知的时间通常是在3月到4月，一般来说申请截止越早的专业发录取的时间也会更早。这些信息都可以在不同学校的官网的查询到，接下来我们来看一下几所学校不同专业博士2020年秋季开学申请和录取的具体时间：
杜克大学 Duck University
Art, Art History and Visual Studies 12/15/2019
Biochemistry 12/15/2019
Biology 12/01/2019
Biomedical Engineering 12/15/2019
Biostatistics 12/02/2019
Business Administration 12/31/2019
Cell and Molecular Biology 12/01/2019
Chemistry 12/01/2019
Civil and Environmental Engineering 12/31/2019
Classical Studies 01/06/2020
Cognitive Neuroscience 12/01/2019
Computational Biology and Bioinformatics 12/01/2019
Computational Media, Arts, and Cultures Not accepting applications for 2020 enrollment
Computer Science 12/15/2019
Cultural Anthropology 12/08/2019
Developmental and Stem Cell Biology 12/01/2019
Earth and Ocean Sciences 01/08/2020
Ecology 12/01/2019
Economics 01/05/2020
Electrical and Computer Engineering 12/01/2019*
English 12/10/2019
Environment 12/15/2019
Environmental Policy 12/15/2019
Evolutionary Anthropology 12/01/2019
Genetics and Genomics 12/01/2019
German Studies - Carolina-Duke Program (must apply through UNC Graduate School) 12/18/2019
History 12/15/2019
Immunology 12/01/2019
Integrated Toxicology and Environmental Health 12/08/2019
Literature 12/08/2019
Marine Science and Conservation 12/08/2019
Mathematics 12/19/2019
Mechanical Engineering and Materials Science 12/31/2019
Medical Physics 12/08/2019
Molecular Cancer Biology 12/09/2019
Molecular Genetics and Microbiology 12/01/2019
Music 01/12/2020
Neurobiology 12/01/2019
Nursing 12/09/2019
Pathology 12/15/2019
Pharmacology and Cancer Biology 12/06/2019
Philosophy 12/31/2019
Physics 12/10/2019**
Political Science Not accepting applications for 2020 enrollment
Psychology and Neuroscience (Clinical track) 12/01/2019
Psychology and Neuroscience (All non-clinical tracks) 12/01/2019
Public Policy Studies 12/01/2019
Religious Studies 12/20/2019
Romance Studies 12/15/2019***
Sociology 12/18/2019
Statistical Science 12/01/2019
其中有个别专业像Electrical and Computer Engineering、Physics、Romance Studies在过了以上的截止日期以后直到来年的2-3月份的最终截止日期以前还是会根据招生和资金的情况继续接受并审核申请的。而Political Science专业的PHD在2020年是没有位置的，也就没有必要去申请了。
普林斯顿大学 Princeton University
根据专业不同有5个截止日期，分别对应的学科如下：
2019年11月25日
*Neuroscience
*Psychology
2019年12月1日
Art and Archaeology
Chemical and Biological Engineering
Chemistr
East Asian Studies
Ecology and Evolutionary Biology
*Economics
History
History of Science
Mechanical and Aerospace Engineering
Molecular Biology
Population Studies
Quantitative and Computational Biology
Woodrow Wilson School of Public and International Affairs
2019年12月15日
Anthropology
Applied and Computational Mathematics
*Astrophysical Sciences
Classics
Computer Science
Electrical Engineering
English
Mathematics
Philosophy
Physic Politics
Program in Plasma Physics
Sociology
Spanish and Portuguese
2019年12月31日
Atmospheric and Oceanic Sciences
Civil and Environmental Engineering
Comparative Literature
Finance
French and Italian
Geosciences
German
Music Composition
Musicology
Near Eastern Studies
Operations Research and Financial Engineering
Religion
Slavic Languages and Literature
2020年1月2日
*Architecture
根据以上的信息，在此提醒有准备申请美国大学PHD的同学，在申请前一定要到所要申请的大学的官网查询所申专业具体的截止日期，提前开始准备申请的资料。通常来说我们建议在申请截止日期前10个月到一年的时间开始申请的准备，准备的工作包括根据需要参加至少2次以上语言和标化考试（每次考试相隔3个月左右）；与目标申请专业导师套磁交流；撰写申请文书和整理学术相关的材料；向母校导师教授约面谈索要推荐信等工作。同时注意不同学校申请截止的日期，切记在申请截止之前提交所有的文件和资料。
