Function FormatDate8601

util/datetime/base.cpp:312–326

}

size_t FormatDate8601(char* buf, size_t len, time_t when) {
    struct tm theTm;
    struct tm* ret = GmTimeR(&when, &theTm);

    if (ret) {
        TMemoryOutput out(buf, len);

        WriteTmToStream(out, theTm);
        out << 'Z';

        return out.Buf() - buf;
    }

    return 0;
}

void SleepUntil(TInstant instant) {
    TInstant now = TInstant::Now();