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NICT REPORT 53Research HighlightsBased on the Act on the Na-tional Institute of Information and Communications Tech-nology, NICT has been working on the generation, maintenance, and dissemi-nation of Japan Standard Time (JST). On June 10, 2018, NICT began to oper-ate JST sub-station at Kobe in order to strengthen ability to cope with emer-gencies.Japan Standard Time has hitherto been generated by a set of atomic clocks running at the NICT headquar-ters (in Koganei City, Tokyo). However, since these clocks are all concentrated at one location, a worst-case natural disaster at the NICT headquarters could bring the generation and provi-sion of Japan Standard Time to a halt. To mitigate this risk, the Space-Time ReferenceAtsushi Matsuda, Lothar Schermelleh, Yas-uhiro Hirano, Tokuko Haraguchi, and Yasushi Hiraoka,“Accurate and fiducial-marker-free correction for three-dimensional chromatic shift in biologi-cal fluorescence microscopy,” Scientific Re-portsDOI: 10.1038/s41598-018-25922-7URL: https://www.nature.com/articles/s41598-018-25922-7Fig.2 : Screenshot of the chromatic aberration correction software developed in this studyStandards Laboratory at the Applied Electromagnetic Research Institute has been working on the distributed syn-thesis of Japan Standard Time. The idea is to generate Japan Standard Time by distributing multiple atomic clocks across multiple regional centers (including LF standard time and fre-quency transmission stations) and syn-thesizing the resulting data by sharing Footnote* Super-resolution microscopyA type of uorescence microscopy that allows samples to be observed at higher resolution than in conventional optical microscopes. The spatial resolution limit of a conventional microscope is about 250 nm horizontally and about 600 nm vertically, while that of a super-resolution microscope is about 15–150 nm horizontally and about 5–300 nm vertically.Generation of JST is now mul-tiplexedKobe branch begins routine supply of Japan Standard TimeWATCH