1. Get Current Timestamp

java

import java.time.Instant;

// Get current timestamp (seconds)
long now = Instant.now().getEpochSecond();

2. Convert Date to Timestamp

java

import java.time.Instant;

// Parse ISO string to timestamp
long ts = Instant.parse("2024-01-01T00:00:00Z").getEpochSecond();

3. Convert Timestamp to Readable Date

java

import java.time.Instant;

// Timestamp to ISO String
String date = Instant.ofEpochSecond(1704067200L).toString();