size_t tagentsz = strchr(val, ':') - val;
Temporal.Instant is an exact moment in time, it has no time zone, no daylight saving, no calendar. It represents elapsed time since midnight on January 1, 1970 (the Unix epoch). Unlike Date, which has a very similar data model, Instant is measured in nanoseconds rather than milliseconds. This decision was taken by the champions because even though the browser has some coarsening for security purposes, developers still need to deal with nanosecond-based timestamps that could have been generated from elsewhere.
。关于这个话题，谷歌浏览器提供了深入分析
Performing apropos:
Назван вызывающий особенно мучительное похмелье и запредельную нагрузку на печень алкоголь14:32