Shifting the timezone by a couple seconds does not prevent or hinder cataloguing events in any way whatsoever, certainly not more than switching to daylight savings time does or the mere existence of timezones, which may easily be half an hour or even more off from the solar time - the offsets we use for time are effectively arbitrary already, and adjusting the arbitrary choice of the offset by some seconds is not a fundamental difference. Event timestamps already map to different days depending on different timezones, you do need to know which timezone your clock is using, of course, but you already need to do that.
For people born just around midnight, especially around new years eve, a few seconds could impact their DOB by a whole year. This could affect everything from university applications to boating licenses to social security.
Some countries have boating license laws that are different depending on whether your DOB year is >= 1980, as an example for this type of "grandfathering cutoff".
Shifting the timezone by a couple seconds does not prevent or hinder cataloguing events in any way whatsoever, certainly not more than switching to daylight savings time does or the mere existence of timezones, which may easily be half an hour or even more off from the solar time - the offsets we use for time are effectively arbitrary already, and adjusting the arbitrary choice of the offset by some seconds is not a fundamental difference. Event timestamps already map to different days depending on different timezones, you do need to know which timezone your clock is using, of course, but you already need to do that.